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RAJIV S. MISHRA

Department of Materials Science and Engineering C136F, Discovery Park

Phone # 940-565-2316, Fax # 940-565-4824 e-mail: [email protected]

CURRENT AFFILIATIONS

Distinguished Research Professor, Materials Science and Engineering Director, Advanced Materials and Manufacturing Processes Institute Site Director, NSF Industry/University Cooperative Research Center for Friction Stir

Processing

Non-UNT MAJOR VOLUNTEER APPOINTMENTS

Board of Directors, The Metals, Materials and Mineral Society (TMS), 2013-16 Chair, Structural Materials Division, TMS, 2013-16

APPOINTMENTS

University Distinguished Research Professor (UNT) Sept. 2015-cont. Professor (UNT) Sept. 2011- Aug. 2015 Curators’ Professor (Missouri S&T) Jan. 2009- Aug. 2011 Professor (Missouri S&T) Sept. 2006- Dec. 2008 Associate Professor (Missouri S&T) Sept. 2003- Aug. 2006. Assistant Professor (Missouri S&T) Aug. 1999- Aug. 2003. Adjunct Assistant Professor (UC-Davis) July 1997-July 1999 Post Graduate Research Associate(UC-Davis) March 1994-June 1997 Group Leader (Creep Group) (DMRL) 1989-1994 Project Leader (DMRL) 1993-1994 Visiting faculty (UI-UC) Fall 2008

RESEARCH INTERESTS

Friction stir welding and processing, Processing and properties of ultrafine grained materials (including nanocrystalline), Superplastic forming, High temperature mechanical behavior of materials (particularly creep and superplasticity), Discontinuously reinforced aluminum composites, Nanophase aluminum alloys, Bulk metallic glasses, Materials selection for alternative energy systems, Hydrokinetic energy, Additive manufacturing.

EDUCATION

Ph.D., Metallurgy (1988), University of Sheffield, UK, with Brunton Medal. “The Influence of Microstructure on the Diffusional Creep of Alloys”

Faculty Advisors: Professor G. W. Greenwood and Professor H. Jones M.Tech., Metallurgical Engineering (1985)

Indian Institute of Technology, Kanpur, India.

“Superplasticity in Al-Zn eutectoid and Pb-Sn eutectic alloys” Faculty Advisor: Professor G. S. Murty

Bachelor of Engineering, Metallurgical Engineering (1982) University of Rajasthan, Jaipur, India.

HONORS AND AWARDS

2015 Distingushed Research Professor, University of North Texas 2010 Co-recipient of Alexander Schwarzkopf Prize for Technological Innovation awarded

to the Center for Friction Stir Processing by NSF-IUCRC Directors Association 2009 Fellow, ASM International 2009 Distinguished Visiting Scientist, CSIRO, Melbourne, Australia 2008 Curators’ Professor, Missouri University of Science and Technology 2007 Faculty Excellence Award, University of Missouri - Rolla 2007 ASM-IIM Visiting Lecturer, ASM International 2006 Faculty Excellence Award, University of Missouri - Rolla 2005 Faculty Excellence Award, University of Missouri - Rolla 2005 Outstanding Graduate Faculty of SoMEER, Council of Graduate Students, University

of Missouri - Rolla 2005 Sustained Teaching Excellence, SoMEER, University of Missouri - Rolla 2004 Faculty Excellence Award, University of Missouri - Rolla 2003 Faculty Excellence Award, University of Missouri - Rolla 2003 Dean’s Award for Innovation in Teaching, Honorable mention, SOMM-UMR 2002 Faculty Excellence Award, University of Missouri - Rolla 2002 Ranked 148 among researchers in Materials Science worldwide (ISI Essential

Science Indicator database in Oct. 2002 based on citation of journal papers) 2002 Listed in Marquis Who’s Who in America 2001 Faculty Excellence Award, University of Missouri - Rolla 2001 Faculty Performance Shares, University of Missouri 1993 Young Metallurgist Award from the Indian Institute of Metals, India. 1993 Associate of the Indian Academy of Sciences, India. 1988 Brunton Medal for the best Ph.D. dissertation in the School of Materials from the

University of Sheffield, UK 1985-1988 Firth Pre-doctoral Scholarship from the University of Sheffield, UK 1985-1988 ORS Award from the Committee of Vice-Chancellors and Principals of UK

RESEARCH EXPERIENCE

UNT Sept. 2011- cont.

• Friction stir welding and processing Transferred the NSF Industry/University Cooperative Research Center to UNT. UNT site is supported by General Motors, Boeing- St. Louis, Pacific Northwest National Laboratory, NASA, Korea Aerospace Research Institute and Army Research Laboratory. Established a state-of-the-art friction stir welding and processing facility with a four-axis machine. The center has attracted machine

Resume of R. S. Mishra – 2

donation from General Motors, new laser system funding from Army, and six-axis robotic machine from Navy.

• Hydrokinetic Energy Established a hydrokinetic energy test facility. Developing a cost-effective approach to alternative energy production and storage.

• Advanced Materials and Manufacturing Processes Institute (AMMPI) Leading the AMMPI from its inception in 2015. A group of more than 24 faculty are involved in various aspects of advanced materials and manufacturing processes. Four signature areas are being developed: materials for ballistic performance, additive manufacturing of metallic and ceramic materials, corrosion, and sensors. A memorandum among UNT, University of Texas-Arlington, Southern Methodist University and University of Texas-Dallas has been signed by the President of UNT and VPRs of other universities to create Texas Center for Advanced Manufacturing (TCAM).

Missouri S&T August 1999- Aug. 2011

• Friction stir welding of aluminum alloys and composites Established the Center for Friction Stir Processing in 2000, and joined a four-university NSF Industry/University Cooperative Research Center in 2004. UMR site is supported by General Motors, Boeing- St. Louis, Pacific Northwest National Laboratory and Friction Stir Link. Established a state-of-the-art friction stir welding facility with three machines (a two-axis machine funded by NSF-IMR program in 2000, a robotic friction stir welding machine funded by ONR-DURIP program in 2004 and a friction stir spot welding machine funded by AFRL under CAMT program). Established microstructure-property correlations in high strength aluminum alloys and composites.

• Friction stir processing Demonstrated use of friction stir processing for superplasticity. This is a new concept that enables several new technical development. Surface composite fabrication for local wear resistance enhancement. Microforming of MEMS components. Friction stir channeling as a new technique to fabricate integral channel heat exchangers. Several of these concepts are being developed for the first time and the University of Missouri filed five patent applications. So far three patents have been awarded.

• Elevated temperature deformation mechanism in high strength aluminum alloys Developing principles for microstructural design of high strength aluminum alloys. Establishing fundamental deformation mechanisms in nanophase aluminum alloys, Al-Sc-Zr-Mg-SiC composites and amorphous aluminum alloys. The work is primarily focused on elevated temperature mechanical behavior. We have used secondary processing to obtain a combination of 700 MPa strength and >8% ductility in Al-Ni-Y alloys in collaboration with Pratt & Whitney. The Al-Ni-Y work has resulted in several P&W-UMR joint invention disclosures in 2006.


• Formability of Bulk Amorphous Alloys Started activities on elevated temperature formability of bulk metallic glasses. Zr-based and Mg-based systems are being investigated.

• Alternative Energy Systems Started activities on materials and process selection for alternative energy systems. Particular focus is on 3-10 kW wind and hydrokinetic energy systems.

University of California, Davis March 1994-July 1999

• Processing and mechanical behavior of ultrafine grained materials Synthesized and characterized a number of ultrafine grained metallic and composite materials. These materials have quite a unique mechanical behavior.

• Sintering and mechanical behavior of nanocrystalline alumina and alumina based nanocomposites

Successfully consolidated nanocrystalline alumina (<50 nm) in less than 10 minutes, finest fully dense alumina reported in the literature. Processed nano alumina matrix composites to evaluate the concept of residual stress toughening and ductile phase toughening in ceramics matrix composites.

• High strain rate superplasticity in dispersion strengthened aluminum alloys Developed a ‘Superplastic Mechanism Map’ for high strain rate superplasticity in dispersion strengthened materials and proposed a model.

• Superplasticity in γ-TiAl alloys

• Primary creep in dispersion strengthened aluminum alloys

Defence Metallurgical Research Laboratory, Hyderabad, India 1988-1994

• Creep Testing of Dispersion Strengthened Aluminum alloys, CM247-LC nickel base superalloy, Ti3Al alloys, Mg-Li-Al alloys and Quasicrystal.

• Development of high temperature aluminum alloys via rapid solidification. • Responsible for microstructure-mechanical property optimization of CM247-LC integral rotor castings for aero engines.

PUBLICATIONS

230 publications in peer-refereed journals (total 304), please see the attached list.

BOOKS

1. Friction Stir Welding and Processing, ASM International, Edited by R.S. Mishra and M.W. Mahoney, ISBN-13: 978-0-87170-840-3, published in March 2007.

Content: Introduction * Tooling * Metal Flow and Temperature Distribution * Microstructural Evolution in Friction Stir Welding Aluminum Alloys * Mechanical Properties of Aluminum Alloys * Microstructure and Properties of Ferrous and Nickel Alloys * Microstructure and Properties of Titanium Alloys * Microstructure and Properties of Copper Alloys * Corrosion * Process Modeling * Use of Robots and Machines * Applications * Friction Stir Processing * Future Outlook * Index


2. Residual Stresses in Friction Stir Welding: A volume in the Friction Stir Welding and Processing Book Series [Paperback], Nilesh Kumar, Rajiv S. Mishra, John A. Baumann, Publication Date: December 6, 2013; ISBN-10: 012800150X

Content: Reviews magnitude of residual stresses in various metals and alloys; Discusses mitigation strategies for residual stresses during friction stir welding; Covers fundamental origin of residual stresses and distortion 3. Friction Stir Processing for Enhanced Low Temperature Formability: A volume in

the Friction Stir Welding and Processing Book Series [Paperback], Christopher B. Smith, Rajiv S. Mishra, Publication Date: January 2014, ISBN: 978-0-12-420113-2

Content: Concept of friction stir processing for enhanced formability; Fundamentals of formability; High structural efficiency design potentials with enhanced formability; Case study of a Al5083 alloy; Examples of enhanced formability of high strength aluminum alloys; Closing remarks and guidelines 4. Friction Stir Superplasticity for Unitized Structures: A volume in the Friction Stir

Welding and Processing Book Series [Paperback], Zongyi Ma, Rajiv S. Mishra, Publication Date: May 2014, ISBN: 978-0-12-420006-7

Content: Friction stir microstructure for superplasticity; High-strain-rate superplasticity; Low temperature superplasticity; Superplasticity of cast alloy – an example; Superplastic deformation mechanism; Enhanced deformation kinetics; Cavitation during superplasticity; Abnormal grain growth; Superplastic forming of friction stir processed plates; Potential of extending superplasticity to thick sections 5. Friction Stir Welding and Processing: Science and Engineering, Springer, R.S.

Mishra. P.S. De and N. Kumar, ISBN-13: 978-3-319-07043-8, August 2014, 338 pages.

Content: Introduction; Fundamentals of the Friction Stir Process; Fundamental Physical Metallurgy Background for FSW/P; Friction Stir Welding Configurations and Tool Selection; FSW of Aluminum Alloys; Friction Stir Welding of Magnesium Alloys; Friction Stir Welding of High Temperature Alloys; Dissimilar Metal Friction Stir Welding; Friction Stir Processing; Residual Stresses and Mitigation Strategies 6. Friction Stir Welding of Dissimilar Alloys and Materials: A volume in the Friction

Stir Welding and Processing Book Series [Paperback], Nilesh Kumar, Wei Yuan, Rajiv S. Mishra, Publication Date: 17 March 2015, ISBN: 978-0-12-802418-8

Content: Introduction; A Framework for Friction Stir Welding of Dissimilar Alloys and Materials; Tool Design for Friction Stir Welding of Dissimilar Alloys and Materials; Friction Stir Welding of Dissimilar Alloys; Friction Stir Welding of Dissimilar Materials; Modeling and Simulation of Friction Stir Welding of Dissimilar Alloys and Materials; Challenges and Opportunities for Friction Stir Welding of Dissimilar Alloys and Materials 7. Friction Stir Casting Modification for Enhanced Structural Efficiency: A volume in

the Friction Stir Welding and Processing Book Series [Paperback], Saumyadeep Jana, Rajiv S, Mishra, Glenn J. Grant, Publication Date: 27 Oct 2015, ISBN: 978-0-12-803359-3

Content: Friction Stir Processing: An Introduction; Mechanical Properties Enhancement; Friction Stir Processing: A Potent Property Enhancement Tool Viable for Industry; Summary and Future Outlook


8. Friction Stir Welding of High Strength 7XXX Aluminum Alloys: A volume in the Friction Stir Welding and Processing Book Series [Paperback], Rajiv S, Mishra, Mageshwari Komarasamy, Publication Date: 15 Jun 2016, ISBN: 978-0-12-809465-5

Content: Introduction; Physical Metallurgy of 7XXX Alloys; Friction Stir Welding—Overview; Temperature Distribution; Microstructural Evolution; Mechanical Properties; Corrosion; Physical Metallurgy-Based Guidelines for Obtaining High Joint Efficiency; Summary and Future Outlook 9. Friction Stir Welding of 2XXX Aluminum Alloys including Al-Li Alloys: A volume

in the Friction Stir Welding and Processing Book Series [Paperback], Rajiv S, Mishra, Harpreet Sidhar, Publication Date: 17 Oct 2016, ISBN: 978-0-12-805368-3

Content: Introduction; Friction Stir Welding - An overview; Physical Metallurgy of 2XXX aluminum alloys; Friction Stir Welding of 2XXX aluminum alloys; Recent developments and applications of FSW of 2XXX alloys; Physical metallurgy based guidelines for obtaining high joint efficiency; Summary and future outlook

PATENTS AND INVENTION DISCLOSURES

1. Co-inventor of a patent application filed by Pratt & Whitney and the University of Missouri on “Friction stir welded structures derived from AL-RE-TM alloys,” June 15, 2007.

2. Co-inventor of a patent application filed by Pratt & Whitney and the University of Missouri on “Hollow structures formed with friction stir welding,” June 15, 2007.

3. Co-inventor of a patent application filed by Pratt & Whitney and the University of Missouri on “Secondary processing of structures derived from AL-RE-TM alloys,” June 15, 2007.

4. Principal inventor of a patent application filed by the University of Missouri on “Selective reinforcement of metallic bodies,” September 2004.

5. Inventor of a US Patent (7,354,657) entitled “Integral Channels in Metal Components and Fabrication thereof,” April 8, 2008

6. Inventor of a U.S. patent (6,923,362) on “Integral channels in metal components and fabrication thereof,” August 2, 2005.

7. Inventor of a U.S. patent (6,655,575) on “Superplastic forming of micro components,” December 2, 2003.

8. Inventor of a U.S. patent (6,712,916) on “Metal superplasticity enhancement and forming process,” March 30, 2004.

9. Invention disclosure to the University of California on “High-strength high-toughness Alumina-Niobium nanocomposites,” 1998.

10. Principal inventor of a U.S. patent (5,728,637) on “Nanocrystalline Alumina-Diamond Composites,” March 17, 1998.

PROFESSIONAL AFFILIATIONS

The Minerals, Metals and Materials Society (TMS) • Member of TMS Board of Directors (2013-16) • Chair (2013-2016) of TMS Structural Materials Division Council


• Past Chair (2002-04) of the joint ASM/TMS Committee on Mechanical Behavior of Materials

• Member, TMS Shaping & Forming Committee, TMS Powder Materials Committee American Society of Metals (ASM)

• Past Vice-Chair of the Nanomaterials Task Force • Past Member of New Products and Services Committee

Society of Manufacturing Engineers American Welding Society Life Member of Indian Institute of Metals Life Member of Materials Research Society of India

PROFESSIONAL SERVICE

Reviewed papers for Metallurgical and Materials Transactions A (Past Chair of the Joint Commisioners and Key Reader), Acta Materialia, Materials Science and Engineering A, Scientific Reports, Journal of Materials Research, Scripta Materialia, Journal of Materials Science, Journal of Engineering Materials and Technology, Physica Status Solidi and Bulletin of Materials Science. • Guest editor of Scripta Materialia for March 2008 Viewpoint set on Friction Stir

Processing. • Editorial board member of Science and Technology of Welding and Joining journal. • Editorial board member of Hindawi journals, Advances in Materials Science and

Engineering and Research Letters in Materials Science. • Served of NSF review panels and reviewed proposals for NSF, University of California

Energy Institute and Kentucky Science & Engineering Foundation. • Organizer of TMS sponsored symposium:

o Processing and Properties of Advanced Structural Ceramics, 1998 TMS Fall Meeting, October 11-15, Rosemont, IL

o Creep Behavior of Advanced Materials for the 21st Century, 1999 TMS Annual Meeting, February 28-March 4, San Diego, CA (edited proceedings)

o Ultrafine Grained Materials, 2000 TMS Annual Meeting, March 11-17, Nashville, Tennessee (edited proceedings)

o Friction Stir Welding and Processing, 2001 TMS Fall Meeting, November 11-17, Indianapolis, Indiana (Co-organizer and co-edited proceedings)

o Creep Deformation: Fundamentals and Application, 2002 TMS Annual Meeting, February 14-17, Seattle, WA (edited proceedings)

o Second International Conference on Ultrafine Grained Materials, 2002 TMS Annual Meeting, February 14-17, Seattle, WA (co-organizer and co-edited proceedings)

o Friction Stir Welding and Processing-II, 2003 TMS Annual Meeting, March 2-6, San Diego, California (Co-organizer and co-edited proceedings)

o Co-coordinator for Friction Stir Processing for THERMEC’2003: International Conference on Processing & Manufacturing of Advanced Materials, July7-11, 2003, Madrid, Spain.

o Processing and Properties of Structural Nanomaterials, 2003 TMS Fall Meeting, Nov. 9-12, Chicago, IL (co-organizer and co-edited proceedings)

o Advances in Superplasticity and Superplastic Forming, 2004 TMS Annual Meeting, March 14-18, Charlotte, North Carolina, (co-organizer and co-edited proceedings)


o Friction Stir Welding and Processing-III, 2005 TMS Annual Meeting, February 13–17, San Francisco, California, (Co-organizer and co-edited proceedings)

o Creep Deformationand Fracture, Design, and Life Extension, Materials Science and Technology 2005, Sept. 25-28, Pittsburgh, PA (organizer and edited proceedings)

o Friction Stir Welding and Processing-IV, 2007 TMS Annual Meeting, February 25–March 1, Orlando, Florida, (organizer and edited proceedings)

o Friction Stir Welding and Processing-V, 2009 TMS Annual Meeting, February 15–19, San Francisco, CA (organizer and edited proceedings)

o Friction Stir Welding and Processing-VI, 2011 TMS Annual Meeting, February 27–March 3, San Diego, CA (organizer and edited proceedings)

o Friction Stir Welding and Processing-VII, 2013 TMS Annual Meeting, March 3-7, San Antonio, TX (organizer and edited proceedings)

o Friction Stir Welding and Processing-VIII, 2015 TMS Annual Meeting, March 16-19, Orlando, Fl (organizer and edited proceedings)

FUNDED RESEARCH AFTER JOINING UMR

Format: Agency/PI, Title, Period, Amount, Credit 1. AFOSR/Mishra, Plasticity in Nanostructured Aluminum Alloys, 12/99-11/02, $151K,

100% 2. UM-RB/Mishra, Friction Stir Welding and Processing of Aluminum Alloys, 01/00-12/00,

$33K, 100% 3. Rockwell Science Center/Mishra, Friction Stir Processed Nanophase Aluminum Alloys,

03/00-09/00, $20K, 100% 4. Appleyard Funds/Mishra, Lead-Free Solders, 05/00-04/01, $2K, 100% 5. NSF/UM-RB/MRTC-Mishra/Tsai/Van Aken, Acquisition of Friction Stir Welding

Machine, 08/00-07/01 (NSF- $95K, UM-RB- $50K, MRTC- $25K), Total- $170K, 50% 6. NSF-DMII/Mishra, Economical Superplastic Forming via Friction Stir Processing, 09/00-

08/03, $229K, 100% 7. DARPA/ONR/Rockwell Science Center-Mishra, High Strain Rate Superplasticity in

Thick Section Aluminum Alloys via Friction Stir Processing, 01/01-12/02, $100K, 100% 8. NSF-DMR/Mishra, Threshold Stress for Creep in Dispersion Strengthened Aluminum

Alloys, 08/01-08/04, $168K, 100% 9. DARPA/AFRL/Boeing-Mishra, Structural Amorphous Aluminum Alloys, 10/01-09/04,

$213K, 100% 10. Boeing-Mishra, Advanced Characterization of FSW Aluminum Alloys, 09/01-06/02,

$15K, 100% 11. DARPA/RSC-Mishra, Microstructural Modification in Aluminum Alloys, 05/02-10/05,

$721K, 100% 12. UM-RB-Mishra/Krishnamurthy, Development of Nanostructured Nickel Base Alloys,

6/03-5/04, $24K, 50% 13. NSF, Collaborative Research Proposal for a Friction Stir Processing Industry/University

Cooperative Research Center, 10/03-09/05, $22K, 100% 14. NSF-DMII/Mishra, Economical Superplastic Forming via Friction Stir Processing, 09/03-

08/06, $280K, 100% 15. Boeing-Mishra, Database for Advanced Aluminum Alloys, 09/03-12/03, $10K, 100% 16. SECAT Inc.-Mishra, Friction Stir Processing of Cast Aluminum Plates, 11/03-12/03,


$5K, 100% 17. AFRL-Mishra/Krishnamurthy/Landers/Richards, Intelligent Control and NDE for Defect-

Free Complex Friction Stir Welded Joints, 04/04-02/06, $568K, 65% 18. Phelps Dodge High Performance Conductors-Mishra/Krishnamurthy, Copper Alloy

Design Database, 3/04-9/04, $15K, 50% 19. ONR-Mishra/Krishnamurthy, Acquisition of a Robotic Friction Stir Welding Machine,

5/04-4/05, $205K, 50% 20. Boeing-Mishra/Krishnamurthy, Modeling of Aluminum Alloys, 3/04-3/05, $26K, 50% 21. Phelps Dodge High Performance Conductors-Mishra/Krishnamurthy, Copper Alloy

Design Database, 10/04-3/05, $43K, 50% 22. SDSMT-BYU-USC-Mishra/Madria/Krishnamurthy, Creation of FSW/P Database and

Process Parameter Correlations Development, 10/04-9/05, $70K, 60% 23. NSF-EEC-Mishra, Friction Stir Processing Industry/University Cooperative Research

Center, 08/05-07/10, $259K, 100% 24. NSF-DMI-Mishra, Friction Stir channeling: An Innovative Technique for Heat Exchanger

Manufacturing, 09/05-08/08, $180K, 100% 25. AFRL-Mishra/Brow/Miller, Injection Molding of Metallic Glasses, 06/05-10/07, $370K,

33% 26. Battelle Pacific/General Motors/Boeing-Mishra, NSF Friction Stir Processing Center

Membership Fee, 08/05-07/06, $95K, 100% 27. DWA Al Comosites-Mishra, Forging and Evaluation of Mechanical Properties of SAM

Al Alloys, 12/07/05 to 03/31/06, $69K, 100% 28. Battelle Pacific/General Motors/Boeing-Mishra, NSF Friction Stir Processing Center

Membership Fee, 08/06-07/07, $125K, 100% 29. NSF-IIP-Mishra/Allada, Collaborative Research: A TIE Research Program on E-Design

for Friction Stir Welding and Processing, 9/1/06-8/31/08, $50K, 50% 30. Pratt & Whitney-Mishra, Feasibility Study for Friction Stir Welding of Advanced

Aluminum Fan Blade, 9/12/06-3/1/07, $57K, 100% 31. Pratt & Whitney-Mishra, Forging and Friction Stir Welding of Amorphous Aluminum

Alloys, 12/1/06-8/31/07, $89K, 100% 32. Friction Stir Link-Mishra, Navy STTR program #N06-T038 – Friction Stir Processing for

Superplastic Forming, August 1, 2006 through August 31, 2007, $21K, 100% 33. AFRL-Mishra/Landers, Implementation of FSW Intelligent Process Control, 04/29/04 –

04/29/08, $150K, 33% 34. Pratt & Whitney-Mishra, Characterization of As-Extruded and Forged Al-Y-Ni-Co Rod,

Optimization of Forging Parameters, Creep Testing and Friction Stir Welding on Forged Al-4.4Y-4.3Ni-0.9Co, January 1, 2007 through December 31, 2008, $238K, 100%

35. Battelle Pacific/General Motors/Boeing-Mishra, NSF Friction Stir Processing Center Membership Fee, 08/07-07/08, $130K, 100%

36. Pratt & Whitney-Mishra, Optimization of Friction Stir Welding for T-Joint, 07-01-2007-12-31-2008, $40K, 100%

37. Friction Stir Link-Mishra, STTR: Advanced Friction Stir Processing for Ultra Refined Microstructure Development of Aluminum 7XXX Series Alloys STTR AF07-T038, 11/1/2007-4/30/2008, $30,739, 100%

38. Friction Stir Link-Mishra, Navy Phase II STTR Transition Plan – Program #N06-T038 –


Friction Stir Processing for Superplastic Forming, 01-01-2008-7-31-2011, $319,757, 100%

39. Boeing/CAMT IC Project-Mishra, Friction Stir Lap Weld Joint Property Characterization of Al-Li Joints, 01-01-2008-12-31-2009, $80,000, 100%

40. Battelle Pacific/General Motors/Boeing-Mishra, NSF Friction Stir Processing Center Membership Fee, 08/08-07/09, $130K, 100%

41. Boeing-Mishra, Materials and Processes Modeling of Aerospace Alloys to Enable Alloys and Processes by Design, 07-30-2008-07-31-2009, $35,128, 100%

42. U. of Idaho/DOE-Mishra, A Comparative Study of Welded ODS Cladding Materials for AFCI/GNEP Applications, 10-01-2008-09-30-2009, $40,555, 100%

43. Boeing-Mishra, Characterizing mechanical Properties at Various Locations of a Friction Stir Welded (FSW) Butt Joint in 7050Al Plate, 02/01/09 – 03/31/09, $7,110, 100%

44. United States Automotive Materials Partnership-Mishra, Characterization of Available AZ31 and New AM-Based Sheet Alloys, 04-01-2009 03-31-2010, $58,915

45. Boeing-Mishra, Joinability Evaluation of Scandium Loaded Aluminum Alloys, 05-01-2009/12-4-09, $45,888, 100%

46. Battelle Pacific/General Motors/Boeing/Magnesium Elektron-Mishra, NSF Friction Stir Processing Center Membership Fee, 08/09-07/10, $140K, 100%

47. FIERF Graduate Fellowship-Mishra, Feasibility Study of AI7075 Near Net Shape Superplastic Forging, 07/09-06/10, $10K, 100%

48. NSF-Van Aken/Fahrenholtz/Mishra/Switzer/Xing, MRI: Acquisition of Analytical TEM for Multi-User Materials Research Environment, 10/1/09-09/30/11, $496,500, 10%

49. Boeing-Mishra, Joinability Evaluation of Scandium Loaded Aluminum Alloys, 02-01-10/12-4-10, $64,909, 100%

50. Magnesium Elektron North America-Mishra, Thermomechanical Processing Optimization of Mg-Y-RE Alloys, 02-01-10/01-31-12, $162,090, 100%

51. Magnesium Elektron North America-Mishra, Development of Split Hopkinson Bar Facility for Compression and Tension Test, 03-01-10/02-25-11, $94,000, 100%

52. Northrup Grumman Corp.-Mishra, High Performance Economical Aluminum Preforms Microtensile Specimen Testing, 04/10-06/30, $19,930, 100%

53. Battelle Pacific/General Motors/Boeing/Magnesium Elektron/NASA-Johnson Space Center-Mishra, NSF Friction Stir Processing Center Membership Fee, 08/10-07/11, $175K, 100%

54. ONR-Mishra/Chandrashekhara/Du/Banerjee/Kimball/Rovey, Waves, Wind and Scavengers: Next Generation Renewable Energy Systems for Naval Applications, 08-16-10/08-15-12, $1,962,000, 20%

55. Rolls-Royce Corporation-Boeing-Mishra, CAMT - Friction Stir Tool Evaluation for Processing of High Temperature Alloys, 9-01-10/8-31-11, $60,000, 100%

56. Boeing-Mishra, Characterization of Welded T-Stiffener Blank using Micro-Tensile Specimen Testing and Orientation Imaging Microscopy, 10-01-10/12-4-10, $13,350, 100%

57. Edison Welding Institute Inc -Mishra, Mini-tensile Testing of a Ultransonically Consolidated 7XXX alloy, 10-01-10/12-31-10, $11,472, 100%

58. NSF-IIP-Mishra, IUCRC Renewal Proposal: NSF I/UCRC for Friction Stir Processing, 01/11-02/16, $200K, 100%


59. GN0004756 Mishra, Rajiv Sharan, PI, Friction Stir Processing of Magnesium Alloys, R, Edison Welding Institute Inc., Federal Flow Thru, 12.431, 9/1/2011, 0.2, 47%, $23,960.41, 100%, $23,960.41, Awarded

60. GN0004777 Mishra, Rajiv Sharan, PI, Joinability Evaluation of Scandium Loaded Aluminum Alloys, R, The Boeing Company, Industry, 9/1/2011, 0.2, 47%, $26,729.00, 100%, $26,729.00, Awarded

61. GN0004778 Mishra, Rajiv Sharan, PI, NSF IUCRC: Friction Stir Processing, R, National Science Foundation, Federal, 47.041, 9/1/2011, 4.3, 0%, $17,741.00, 100%, $17,741.00, Awarded

62. GN0004780 Mishra, Rajiv Sharan, PI, Distortion Minimization in Welding of Thin Aluminum Components for Flat Applications, R, The Boeing Company, Industry, 10/1/2011, 0.2, 0%, $14,904.00, 100%, $14,904.00, Awarded

63. GN0004786 Mishra, Rajiv Sharan, PI, Friction Stir Tool Evaluation for Processing of High Temperature Alloys; Rolls-Royce North America Inc. and Center for Aerospace Manufacturing Technologies Industrial Consortium, R, Missouri University of Science & Technology, Industry, 9/1/2011, 1, 0%, $40,000.00, 100%, $40,000.00, Awarded

64. GN0004859 Mishra, Rajiv Sharan, PI, High Strain Rate Deformation of High Performance Magnesium Alloys, R, Missouri University of Science & Technology, Federal Flow Thru, 12.630, 11/1/2011, 0.5, 47%, $56,867.00, 100%, $56,867.00, Awarded

65. GN0004902 Mishra, Rajiv Sharan, PI, TAOI B-Computational Microstructural Optimization Design Tool for High Temperature Structural Materials, R, U.S. Department of Energy, Federal, 81.057, 9/1/2012- 8/31/2014, 3, 47%, $300,000.00, 100%, $300,000.00, Awarded

66. GN0005023 Mishra, Rajiv Sharan, PI, Joinability Evaluation of Aluminum-Magnesium-Scandium Alloys, R, The Boeing Company, Industry, 2/1/2012, 0.8, 47%, $74,517.23, 100%, $74,517.23, Awarded

67. GN0005038 Mishra, Rajiv Sharan, PI, IUCRC Renewal Proposal: NSF IUCRC: Friction Stir Processing, R, National Science Foundation, Federal, 47.041, 11/21/2011, 0.1, 0%, $35,174.00, 100%, $35,174.00, Awarded

68. GN0005136 Mishra, Rajiv Sharan, PI, Testing and Characterization of Additive Friction Stir Samples, R, Aeroprobe Corporation, Industry, 5/1/2012, 0.3, 47%, $29,789.00, 100%, $29,789.00, Awarded

69. GN0005340 Mishra, Rajiv Sharan, PI, Magnesium Alloy Evaluation, R, The Boeing Company, Industry, 8/1/2012, 0.4 47%, $34,200.06, 100%, $34,200.06, Awarded

70. GN0005382 Mishra, Rajiv Sharan, PI, Distortion Minimization in Welding of Thin Aluminum Components for Flat Applications, 2012, R, The Boeing Company, Industry, 8/1/2012, 0.4, 0%, $24,967.79, 100%, $24,967.79, Awarded

71. GN0005512 Mishra, Rajiv Sharan, PI, Microstructural Characterization of Aluminum Sheets, General Motors Corporation, 12/10/2012-1/31/2013, 100%, $5,698, Awarded

72. GN0005448 Mishra, Rajiv Sharan, PI, IUCRC: Membership Fees, The Boeing Company, 8/26/2012-8/31/2013 100%, $35,000, Awarded

73. GN0005722 Mishra, Rajiv Sharan, PI, Fundamentals of Functional Modifications to Structural Materials Using Friction Stir Processing, Pacific Northwest National Laboratory, 2/1/2013-12/31/2013, 100%, $40,000, Awarded

74. GN0005782 Mishra, Rajiv Sharan, PI, Joinability Evaluation of Aluminum-Magnesium-Scandium Alloys, The Boeing Company, 2/1/2013-12/13/2013, 100%, $75,000, Awarded

75. GN0004778 Mishra, Rajiv Sharan, PI, NSF IUCRC: Friction Stir Processing, National Science Foundation, 8/18/2011-12/31/2015, 100%, $40,000, Awarded

76. GN0005563 Mishra, Rajiv Sharan, PI, Development of Multi-physics Based Hybrid Manufacturing for Unique Microstructure, US Army Research Laboratory, 5/1/2013-4/30/2014, 100%, $199,372, Awarded

77. Mishra, Rajiv Sharan, PI, Narendra Dahotre, Co-PI, Acquisition of a Laser System for


the Development of Hybrid Friction Stir Processing, U. S. Army, 08/26/13–08/25/14, 50%, $133,525, Awarded

78. Mishra, R., PI; Collaborative Research: Friction Stir Processing of Metal Matrix Nanocomposites Fabricated by Semi-solid Processing, National Science Foundation, $152,898.00, 100%, Awarded

79. Mishra, R., PI; Friction Stir Additive Manufacturing for Ultrasupercritical Power Plant Systems (Topic 20A), Materials & Electrochemical Research Corporation, $83,000.00, 50%, Awarded

80. Mishra, R., PI; Friction Stir Additive Manufacturing for Gradient Structures for Small Modular Reactors (Topic 32F), Materials & Electrochemical Research Corporation, $83,000.00, 50%, Awarded

81. Mishra, R., PI; 3-Inch Thick 7050-T7451 Friction Stir Weld Characterization, GKN Aerospace North America, Inc., $78,081.00, 100%, Awarded

82. Mishra, Rajiv Sharan, PI, REL-Concept Development for Materials Discovery Apparatus (MDA), REL, Incorporated, 2014-08-01, $24,512.00, 100% Awarded

83. Mishra, R., PI; Development of Multi-physics Based Hybrid Manufacturing for Unique Microstructure, Dept of the Army -- Materiel Command, $265,280, 07/2016-06/2017, 100%, Awarded

84. Mishra, R., co-PI; Light Weight Composite Structures for Advanced Tactical Shelters, Army Subcontract through Northeastern University (co-PI with five other UNT faculty), $873,284, 09/01/16 - 08/31/17, 14%, Awarded

85. Mishra, R., PI; Advanced Ballistics Technology Materials Development, Characterization and Computational Modeling Activities, Army Research Lab Subcontract through Temple University (PI with six other co-PIs from UNT), $5,952,508, 09/01/16 - 08/31/18, 40%, Awarded

86. Mishra, R., PI; Friction Stir Additive Manufacturing of Titanium Alloys for High Performance Military Applications, MER Corporation (Army STTR Sub-contract), $90,000, 09/01/16 - 02/28/17, 50%, Awarded

87. Mishra, R., PI; Microstructural and Fatigue Analysis of AM Alloys, Oerlikon Metco (US) Inc., $90,958, 10/17/2016 - 3/31/2017, 100%, Awarded

Total research and equipment funding obtained: ~$10.1 M (individual credit)


List of Mishra’s graduate students who completed thesis at UMR and post-doctoral research associates MS Thesis 1. Jing Zheng, Microstructure and Mechanical Properties of Nanophase Aluminum Alloys,

2002 2. Siddharth Ramkrishna Sharma, Mechanical Property-Microstructure Correlations in Friction

Stir Welded Aluminum Alloys, 2002 3. Cory Alan Alexander, Aspects in Application of Finite Element Approach to Predict

Mechanical Response of Materials, 2004 4. Saurav Mohan, Friction Stir Microforming of Superplastic Alloys, 2004 5. Martin Anthony Rust, Processing Parameter Studies & Tooling Concerns in Friction Stir

Processing of Cast Aluminum Alloys, 2004 6. James Nicholas Reck, Deformation of Superplastic Metals During Friction Stir

Microforming, 2005 7. Samarth Tandon, Design of Alloys and High Efficiency Structures, 2005 8. Manisha Dixit, Validation of Microstructure-Property Correlations for Design of Materials,

2006 9. Vikas Dixit, Experimental Optimization of Microstructure and Mechanical Properties of

Friction Stir Processed Materials, 2006 10. Sai Siva Prasad Muppur, Numerical Modeling of Material Flow and Fatigue in Friction Stir

Processing, 2006, Co-Advisor 11. Timothy Alan Freeney, Friction Stir Processing of Magnesium Alloys, 2007 12. Abhilash Raveendranathan, Reliablistic design of sand cast Al F357 components with

improved properties using FSP, 2007 13. Neal Ross, Elevated Temperature Behavior of a Magnesium Based Bulk Metallic Glass, 2008 14. Kamini A. Gupta, Friction Stir Form Welding of Aluminum Structures, 2008 15. Wei Yuan, Friction Stir Spot Welding of Aluminum Alloys, 2008 16. Jeffrey M. Rodelas, Friction Stir Spot Welding of Advanced High Strength Steels, 2008 17. Gaurav Bhargava, Friction Stir Processing of Magnesium Alloys, 2009 18. Bharat Gattu, Synthesis of Surface Composites using Friction Stir Processing, 2009 19. Juana Mariel Davila Vilchis, A Study of Power Generation from a Low-Cost Hydrokinetic

Energy System, 2013 PhD Thesis 1. Indrajit Charit, Microstructural and Superplastic Characteristics of Friction Stir Processed

Aluminum Alloys, 2004 2. Sachin Deshmukh, An Investigation of Threshold Stress in Dispersion Strengthened

Aluminum Alloys, 2005 3. Xinlin Shi, Mechanical Behavior of Ultrafine Dispersion Strengthened Aluminum Alloys,

2005 4. Siddharth Sharma, Microstructure Modification for Improved Mechanical Properties in A356

using FSP, 2005


5. Lucie B. Johannes, Multiple Pass Friction Stir Processing for High Strain Rate Superplasticity and the Addition of Nanotubes into Aluminum through Friction Stir Processing, 2006

6. Nagarajan Balasubramanian, Friction Stir Channeling: An Innovative Technique for Heat Exchanger Manufacturing, 2008, Co-Advisor

7. Saumyadeep Jana, The Role of Friction Stir Processing on the Microstructure and Mechanical Properties of a Cast Aluminum Alloy, 2009

8. Manasij Kumar Yadava, Material Flow and Microstructure Evolution in Friction Stir Welding of AA 6111 Alloy Sheets, 2009

9. Harsha Badarinarayan, Fundamentals of Friction Stir Spot Welding, 2009, Co-Advisor 10. Partha Sarathi De, Factors Controlling Ductility in Ultrafine Grain Aluminum Alloys under

Monotonic and Cyclic Loading, 2010 11. Nilesh Kumar, Additivity of Strengthening Mechanisms in Ultrafine Grained Aluminum

Alloys, 2011 12. Wei Yuan, Influence of microstructural length scale on deformation behavior of Mg alloys,

2011 13. Gaurav Argade, Stress corrosion cracking behavior of friction stir processed ultrafine grained

light metal alloys, 2012 14. Arun Mohan, Influence of Temperature and Microstrctural Modification on Formability of

Magnesium Alloys, 2012 15. Jiye Wang, Friction Stir Welding of High Temperature Alloys, 2012 16. Mageshwari Komarasami, Deformation Micro-Mechanisms of Simple and Complex

Concentrated FCC Alloys, 2015 17. Phalgun Nelaturu, Fatigue Behavior of A356 Aluminum Alloy, 2016 18. Sivanesh Palanivel, Thermomechanical processing, Additive manufacturing and Alloy design

of high strength Mg alloys, 2016 19. Nelson Martinez, Friction Stir Welding of Precipitation Strengthened Aluminum 7449

Alloys, 2016 20. Harpeet Sidhar, Friction Stir Welding of High Strength Precipitation Strengthened Aluminum

Alloys, 2016 21. Shamiparna Das, Microstructure for Enhanced Plasticity and Toughness, 2016 22. Vedavyas Tungala, Exceptional Properties in Friction Stir Processed Titanium Alloys and

Steels, 2017 23. Aniket Kumar Dutt, Microstructural evolution and mechanical response of materials by

‘design and modeling’, 2017 Post-Doctoral Research Associates 1. Rinat Islamgaliev, 2000 2. Zong-Yi Ma, 2001-2004 3. Abhijit Dutta, 2004 4. Yanwen Wang, 2004-2008 5. Indrajit Charit, 2004 6. Abhijit Dutta, 2007-08 7. Rajeev Kapoor, 2008-2010 8. Kumar Kandasamy, 2009-2012


9. Sushanta Kumar Panigrahi, 2010-2012 10. Partha Sarathi De, 2010-2011 11. Jian-Qing Su, 2010-2013 12. Amit Arora, 2014 13. Nilesh Kumar, 2011-2015 14. Mageshwari Komarasamy, 2016-cont.


Courses Taught at University of North Texas

Courses taught (last semester first) Course Semester

MTSE3050 Mechanical Behavior of Materials Spring 2017 MTSE5020 Mechanical Behavior of Materials Spring 2016 MTSE3050 Mechanical Behavior of Materials Spring 2016 MTSE3050 Mechanical Behavior of Materials Spring 2015 MTSE 4100 Senior Capstone Project Spring 2015 MTSE5700 Seminars in Materials Science and Engineering Spring 2015 MTSE4010 Physical Metallurgy Principles Fall 2014 MTSE3050 Mechanical Behavior of Materials Spring 2014 MTSE4010 Physical Metallurgy Principles Fall 2013 MTSE3050 Mechanical Behavior of Materials Spring 2013 MTSE4010 Physical Metallurgy Principles Fall 2012 MTSE3050 Mechanical Behavior of Materials Spring 2012

Courses Taught at Missouri S&T (UMR)

MT ENG 215 Mechanical Behavior of Materials Fall 2010 MT ENG 216 A Mechanical Behavior of Materials Lab Fall 2010 MT ENG 216 B Mechanical Behavior of Materials Lab Fall 2010 MT ENG 215 Mechanical Behavior of Materials Fall 2009 MT ENG 216 A Mechanical Behavior of Materials Lab Fall 2009 MT ENG 216 B Mechanical Behavior of Materials Lab Fall 2009 MT ENG 321 Metal Deformation Processes Winter 2009 MSE 325 Materials Selection in Mechanical Design Spring 2008 MT ENG 216 A Mechanical Behavior of Materials Lab Fall 2007 MT ENG 216 B Mechanical Behavior of Materials Lab Fall 2007 MSE 301 Materials Selection in Mechanical Design Spring 2007 MT ENG 216 A Mechanical Behavior of Materials Lab Fall 2006 MT ENG 216 B Mechanical Behavior of Materials Lab Fall 2006 MT ENG 301 Principles for Materials by Design Spring2006 MT ENG 201 Materials Selection in Mechanical Design Fall 2005 MT ENG 218 A Metals Structure and Properties Lab Fall 2005 MT ENG 218 B Metals Structure and Properties Lab Fall 2005 MT ENG 311 Metals Joining Winter 2005 MT ENG 301 Principles for Materials by Design Fall 2004 MT ENG 321 Metal Deformation Processes Winter 2004 MT ENG 218 Metals Structure and Properties Lab Fall 2003 MT ENG 311 Metals Joining Winter 2003 MT ENG 301 Introduction to Nanoscience and Engineering Fall 2002 (Team teaching) MT ENG 401 Advanced Materials by Microstructural Design Fall 2002 MT ENG 218 A Metals Structure and Properties Lab Fall 2002


MT ENG 218 B Metals Structure and Properties Lab Fall 2002 MT ENG 321 Metal Deformation Processes Winter 2002 MT ENG 311 Metals Joining Fall 2001 MT ENG 222 3A Metals Processing Lab Winter 2001 MT ENG 222 3B Metals Processing Lab Winter 2001 MT ENG 321 Metal Deformation Processes Winter 2001 MT ENG 311 Metals Joining Fall 2000 MT ENG 321 Metal Deformation Processes Winter 2000 MT ENG 218 Metals Structure and Properties Lab Fall 1999


LIST OF PUBLICATIONS A. Refereed Journals 2017 1. M Komarasamy, K Alagarsamy, RS Mishra, Serration behavior and negative strain rate sensitivity of

Al0.1CoCrFeNi high entropy alloy, 2017, Intermetallics 84, 20-24. 2. N Martinez, N Kumar, RS Mishra, KJ Doherty, Effect of tool dimensions and parameters on the

microstructure of friction stir welded aluminum 7449 alloy of various thicknesses, 2017, Materials Science and Engineering: A 684, 470-479.

2016 3. Palanivel, S., Arora, A., Doherty, K.J., Mishra, R.S., A framework for shear driven dissolution of

thermally stable particles during friction stir welding and processing, 2016, Materials Science and Engineering A, 678, pp. 308-314.

4. K Alagarsamy, A Fortier, M Komarasamy, N Kumar, A Mohammad, S. Banerjee, H.-C. Han, R.S. Mishra, Mechanical Properties of High Entropy Alloy Al0.1CoCrFeNi for Peripheral Vascular Stent Application, 2016 Cardiovascular engineering and technology 7 (4), 448-454.

5. S Palanivel, RS Mishra, RE Brennan, KC Cho, Accelerated age hardening response by in-situ ultrasonic aging of a WE43 alloy, 2016, Materials and Manufacturing Processes, 1-5.

6. Sidhar, H., Mishra, R.S., Aging kinetics of friction stir welded Al-Cu-Li-Mg-Ag and Al-Cu-Li-Mg alloys, 2016, Materials and Design, 110, pp. 60-71.

7. Kumar, N., Mishra, R.S., Dahotre, N.B., Brennan, R.E., Doherty, K.J., Cho, K.C., Effect of friction stir processing on microstructure and mechanical properties of laser-processed Mg-4Y-3Nd alloy, 2016, Materials and Design, 110, 663-675.

8. Dutt, A.K., Pasebani, S., Charit, I., Mishra, R.S., On the creep behavior of dual-scale particle strengthened nickel based alloy, 2016, Materials Science and Engineering A, 676, pp. 406-410.

9. Sidhar, H., Martinez, N.Y., Mishra, R.S., Silvanus, J., Friction stir welding of Al-Mg-Li 1424 alloy, 2016, Materials and Design, 106, pp. 146-152.

10. Lipscomb, C.A., Fortier, A., Kong, F., Das, S., Kumar, N., Mishra, R.S., Evaluation of plastic zone development in WE43 magnesium alloy upon friction stir processing using finite element modeling, 2016, Materials Science and Engineering A, 673, pp 178-184.

11. Darling K.A., Rajagopalan M., Komarasamy M., Bhatia M.A., Hornbuckle B.C., Mishra R.S., Solanki K.N., Extreme creep resistance in a microstructurally stable nanocrystalline alloy, 2016, Nature, 537 (7620) , pp. 378-381.

12. Garcia-Bernal M.A., Mishra R.S., Verma R., Hernandez-Silva D., Influence of friction stir processing tool design on microstructure and superplastic behavior of Al-Mg alloys, 2016, Materials Science and Engineering A, 670 , pp. 9-16.

13. Das, S., Martinez, N.Y., Das, S., Mishra, R.S., Grant, G.J., Jana, S., Polikarpov, E., Magnetic Properties of Friction Stir Processed Composite, 2016, JOM, 68, pp 1925-1931.

14. Tinubu, O.O., Das, S., Dutt, A., Mogonye, J.E., Ageh, V., Xu, R., Forsdike, J., Mishra, R.S., Scharf, T.W., Friction stir processing of A-286 stainless steel: Microstructural evolution during wear, 2016, Wear, Volume 356-357, 15 June 2016, Pages 94-100.

15. Komarasamy, M., Kumar, N., Mishra, R.S., Liaw, P.K., Anomalies in the deformation mechanism and kinetics of coarse-grained high entropy alloy, 2016, Materials Science and Engineering A, 654, pp. 256-263.

16. Palanivel, S., Dutta, A.K., Faierson, E.J., Mishra, R.S., Spatially dependent properties in a laser additive manufactured Ti-6Al-4V component, 2016, Materials Science & Engineering A 654, pp. 39-52.

2015 17. N. Kumar, Q. Ying, X. Nie, R.S. Mishra, Z. Tang, P.K. Liaw, R.E. Brennan, K.J. Doherty, K.C. Cho,

High strain-rate compressive deformation behavior of the Al0.1CrFeCoNi high entropy alloy, 2015, Materials & Design, 86, 598–602.


18. Komarasamy, M., Mishra, R.S., Mukherjee, S., Young, M.L., Friction Stir-Processed Thermally Stable Immiscible Nanostructured Alloys, 2015, JOM, 67 (12), pp. 2820-282.

19. Mridha, S., Das, S., Aouadi, S., Mukherjee, S., Mishra, R.S., Nanomechanical Behavior of CoCrFeMnNi High-Entropy Alloy, 2015, JOM, 67 (10), pp. 2296-2302.

20. S. Pasebani, I. Charit, R.S. Mishra, Effect of tool rotation rate on constituent particles in a friction stir processed 2024Al alloy, 2015, Materials Letters 160, 64-67.

21. M.A. García-Bernal, R.S. Mishra, R. Verma, D. Hernández-Silva, Inhibition of abnormal grain growth during hot deformation behavior of friction stir processed 5083 Al alloys, 2015, Materials Science and Engineering: A, 636, 326-330.

22. N. Kumar, D. Choudhuri, R. Banerjee, R.S. Mishra, Strength and ductility optimization of Mg–Y–Nd–Zr alloy by microstructural design, 2015, International Journal of Plasticity 68, 77-97.

23. R.S. Mishra, N. Kumar, M Komarasamy, Lattice strain framework for plastic deformation in complex concentrated alloys including high entropy alloys, 2015, Materials Science and Technology, 31, 1259-1263.

24. N. Kumar, M. Komarasamy, P. Nelaturu, Z. Tang, P.K. Liaw, R.S. Mishra, Friction Stir Processing of a High Entropy Alloy Al0. 1CoCrFeNi, 2015, JOM 67 (5), 1007-1013.

25. S. Pasebani, A.K. Dutt, J. Burns, I. Charit, R.S. Mishra, Oxide dispersion strengthened nickel based alloys via spark plasma sintering, 2015, Materials Science and Engineering: A 630, 155-169.

26. S Palanivel, H Sidhar, RS Mishra, Friction Stir Additive Manufacturing: Route to High Structural Performance, 2015, JOM 67 (3), 616-621.

27. S Palanivel, P Nelaturu, B Glass, RS Mishra Friction stir additive manufacturing for high structural performance through microstructural control in an Mg based WE43 alloy, 2015, Materials & Design 65, 934-952.

28. M Komarasamy, N Kumar, Z Tang, RS Mishra, PK Liaw, Effect of Microstructure on the Deformation Mechanism of Friction Stir-Processed Al0. 1CoCrFeNi High Entropy Alloy, 2015, Materials Research Letters 3 (1), 30-34.

2014 29. J Wang, J Su, RS Mishra, R Xu, JA Baumann, Tool wear mechanisms in friction stir welding of Ti–

6Al–4V alloy, 2014, Wear 321, 25-32. 30. M Komarasamy, RS Mishra, Serration behavior and shear band characteristics during tensile

deformation of an ultrafine-grained 5024 Al alloy, 2014, Materials Science and Engineering: A 616, 189-195.

31. H Li, Z Hu, K Chandrashekhara, X Du, R Mishra, Reliability-based fatigue life investigation for a medium-scale composite hydrokinetic turbine blade, 2014, Ocean Engineering 89, 230-242.

32. TG Novak, HD Vora, RS Mishra, ML Young, NB Dahotre, Synthesis of Al0. 5CoCrCuFeNi and Al0. 5CoCrFeMnNi High-Entropy Alloys by Laser Melting, 2014, Metallurgical and Materials Transactions B 45 (5), 1603-1607.

33. J Wang, W Yuan, RS Mishra, I Charit, An evaluation of creep behaviour in friction stir welded MA754 alloy, 2014, Journal of Materials Engineering and Performance 23 (9), 3159-3164.

34. S Pasebani, AK Dutt, I Charit, RS Mishra, Nickel-Chromium Alloys: Engineered Microstructure via Spark Plasma Sintering, 2014, Materials Science Forum 783, 1099-1104

35. N Kumar, M Komarasamy, RS Mishra, Plastic deformation behavior of ultrafine-grained Al–Mg–Sc alloy, 2014, Journal of Materials Science 49 (12), 4202-4214.

36. JM Davila-Vilchis, RS Mishra, Performance of a hydrokinetic energy system using an axial-flux permanent magnet generator, 2014, Energy 65, 631-638.

37. N Kumar, N Dendge, R Banerjee, RS Mishra, Effect of microstructure on the uniaxial tensile deformation behavior of Mg–4Y–3RE alloy, 2014, Materials Science and Engineering: A 590, 116-131.

2013 38. Santhanakrishnan, S., Kumar, N., Dendge, N., Choudhuri, D., Katakam, S., Palanivel, S., Vora, H.D.,


Banerjee, R., Mishra, R.S., Dahotre, N.B., Macro- and microstructural studies of laser-processed WE43 (Mg-Y-Nd) magnesium alloy, 2013, Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science 44 (5) , pp. 1190-1200.

39. Wang, J., Yuan, W., Mishra, R.S., Charit, I., Microstructural evolution and mechanical properties of friction stir welded ODS alloy MA754, 2013, Journal of Nuclear Materials 442 (1-3) , pp. 1-6.

40. Kumar, N., Mishra, R.S., Additivity of strengthening mechanisms in ultrafine grained Al-Mg-Sc alloy, 2013, Materials Science and Engineering A 580 , pp. 175-183.

41. Yuan, W., Panigrahi, S.K., Mishra, R.S., Achieving high strength and high ductility in friction stir-processed cast magnesium alloy, 2013, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 44 (8) , pp. 3675-3684.

42. Mohan, A., Panigrahi, S.K., Mishra, R.S., Verma, R., Influence of strain and strain rate on microstructural evolution during superplasticity of Mg-Al-Zn sheet, 2013, Journal of Materials Science 48 (16) , pp. 5633-5644.

43. Su, J., Wang, J., Mishra, R.S., Xu, R., Baumann, J.A., Microstructure and mechanical properties of a friction stir processed Ti-6Al-4V alloy, 2013, Materials Science and Engineering A 573 , pp. 67-74.

44. Jain, V., Mishra, R.S., Verma, R., Essadiqi, E., Superplasticity and microstructural stability in a Mg alloy processed by hot rolling and friction stir processing, (2013) Scripta Materialia, 68 (7), pp. 447-450.

45. Argade, G.R., Kumar, N., Mishra, R.S., Stress corrosion cracking susceptibility of ultrafine grained Al-Mg-Sc alloy, (2013) Materials Science and Engineering A, 565, pp. 80-89.

46. Mohan, A., Yuan, W., Mishra, R.S., High strain rate superplasticity in friction stir processed ultrafine grained Mg-Al-Zn alloys, (2013) Materials Science and Engineering A, 562, pp. 69-76.

47. Kapoor, R., Kandasamy, K., Mishra, R.S., Baumann, J.A., Grant, G., Effect of friction stir processing on the tensile and fatigue behavior of a cast A206 alloy, (2013) Materials Science and Engineering A, 561, pp. 159-166.

48. Kang, J., Wilkinson, D.S., Mishra, R.K., Yuan, W., Mishra, R.S., Effect of inhomogeneous deformation on anisotropy of AZ31 magnesium sheet, 2012, Materials Science and Engineering A, Article in Press.

49. Jain, V., Mishra, R.S., Gupta, A.K., Gouthama, Study of β-precipitates and their effect on the directional yield asymmetry of friction stir processed and aged AZ91C alloy, 2013, Materials Science and Engineering A, 560 , pp. 500-509.

50. Wang, J., Yuan, W., Mishra, R.S., Charit, I., Microstructure and mechanical properties of friction stir welded oxide dispersion strengthened alloy, 2013, Journal of Nuclear Materials432 (1) , pp. 274-280.

51. Kumar, N., Mishra, R.S., Ultrafine-Grained Al-Mg-Sc Alloy via Friction-Stir Processing, 2013, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 44, pp 934-945.

2012 52. Yuan, W., Mishra, R.S., Grain size and texture effects on deformation behavior of AZ31 magnesium

alloy, 2012, Materials Science and Engineering A, 558 , pp. 716-724. 53. Kumar, N., Mishra, R.S., Thermal stability of friction stir processed ultrafine grained AlMgSc alloy,

2012, Materials Characterization, 74 , pp. 1-10. 54. Argade, G.R., Yuan, W., Kandasamy, K., Mishra, R.S., Stress corrosion cracking susceptibility of

ultrafine grained AZ31, 2012, Journal of Materials Science 47 (19) , pp. 6812-6822. 55. Li, H., Chandrashekhara, K., Mishra, R.S., Fatigue life investigation for a medium scale composite

hydrokinetic turbine blade, 2012, International SAMPE Technical Conference. 56. Panigrahi, S.K., Kumar, K., Kumar, N., Yuan, W., Mishra, R.S., DeLorme, R., Davis, B., Howell,

R.A., Cho, K., Transition of deformation behavior in an ultrafine grained magnesium alloy, 2012, Materials Science and Engineering A549 , pp. 123-127.

57. Ghosh, M., Kumar, K., Mishra, R.S., Process optimization for friction-stir-welded martensitic steel,


2012, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science43 (6) , pp. 1966-1975.

58. Heckman, A., Rovey, J.L., Chandrashekhara, K., Watkins, S.E., Mishra, R., Stutts, D., Ultrasonic underwater transmission of composite turbine blade structural health, 2012, Proceedings of SPIE - The International Society for Optical Engineering8343 , art. no. 83430O.

59. Argade, G.R., Kandasamy, K., Panigrahi, S.K., Mishra, R.S., Corrosion behavior of a friction stir processed rare-earth added magnesium alloy, 2012, Corrosion Science, 58 , pp. 321-326.

60. Yuan, W., Mishra, R.S., Carlson, B., Verma, R., Mishra, R.K., Material flow and microstructural evolution during friction stir spot welding of AZ31 magnesium alloy, 2012, Materials Science and Engineering A543 , pp. 200-209.

61. Argade, G.R., Panigrahi, S.K., Mishra, R.S., Effects of grain size on the corrosion resistance of wrought magnesium alloys containing neodymium, 2012, Corrosion Science, 58 , pp. 145-151.

62. García-Bernal, M.A., Mishra, R.S., Verma, R., Hernández-Silva, D., Hot deformation behavior of friction-stir processed strip-cast 5083 aluminum alloys with different Mn contents, 2012, Materials Science and Engineering A534 , pp. 186-192.

63. Jain, V., Yuan, W., Mishra, R.S., Gouthama, Gupta, A.K., Directional anisotropy in the mechanical behavior of friction stir processed and aged AZ91 alloy, 2012, Materials Science Forum702-703 , pp. 64-67.

2011 64. Yuan, W., Mishra, R.S., Effect of heat index on microstructure and mechanical behavior of friction

stir processed AZ31, 2011, Magnesium Technology, pp. 205-209. 65. Jain, V., Su, J.Q., Mishra, R.S., Verma, R., Javaid, A., Aljarrah, M., Essadiqi, E., Microstructure and

mechanical properties of Mg-1.7Y-1.2Zn sheet processed by hot rolling and friction stir processing, 2011, Magnesium Technology, pp. 565-570.

66. Argade, G.R., Mishra, R.S., Smith, C.B., Mahoney, M.W., Effect of friction stir processing on corrosion behavior of AA5083 aluminum alloy, 2011, TMS Annual Meeting, pp. 307-313.

67. Yuan, W., Mishra, R.S., Carlson, B., Verma, R., Szymanski, R., Effect of coating on mechanical properties of magnesium alloy friction stir spot welds, 2011, TMS Annual Meeting, pp. 401-407.

68. Smith, C.B., Mishra, R.S., Argade, G.R., Mahoney, M.W., Mechanical properties of friction stir processed, friction stir welded, and gas metal arc welded AA5083 aluminum plate, 2011, TMS Annual Meeting, pp. 267-280.

69. Subhra Mukherji, S., Kolekar, N., Banerjee, A., Mishra, R., Numerical investigation and evaluation of optimum hydrodynamic performance of a horizontal axis hydrokinetic turbine, 2011, Journal of Renewable and Sustainable Energy3 (6) , art. no. 063105.

70. Panigrahi, S.K., Yuan, W., Mishra, R.S., DeLorme, R., Davis, B., Howell, R.A., Cho, K., “A study on the combined effect of forging and aging in Mg-Y-RE alloy,” (2011) Materials Science and Engineering A 530 (1) , pp. 28-35.

71. Yuan, W., Panigrahi, S.K., Su, J.-Q., Mishra, R.S., “Influence of grain size and texture on Hall-Petch relationship for a magnesium alloy,” (2011) Scripta Materialia 65 (11) , pp. 994-997.

72. De, P.S., Mishra, R.S., “Grain boundary behavior in an ultrafine-grained aluminum alloy,” (2011) Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 42 (12) , pp. 3558-3561.

73. Ghosh, M., Kumar, K., Mishra, R.S., “Friction stir lap welded advanced high strength steels: Microstructure and mechanical properties,” (2011) Materials Science and Engineering A 528 (28) , pp. 8111-8119.

74. Kumar, N., Mishra, R.S., Huskamp, C.S., Sankaran, K.K., “The effect of friction stir processing on the microstructure and mechanical properties of equal channel angular pressed 5052Al alloy sheet,” (2011) Journal of Materials Science 46 (16), pp. 5527-5533.

75. Kumar, N., Mishra, R.S., Huskamp, C.S., Sankaran, K.K., “Microstructure and mechanical behavior of friction stir processed ultrafine grained Al-Mg-Sc alloy,” (2011) Materials Science and


Engineering A 528 (18), pp. 5883-5887. 76. De, P.S., Mishra, R.S., Baumann, J.A., “Characterization of high cycle fatigue behavior of a new

generation aluminum lithium alloy,” (2011) Acta Materialia 59, pp. 5946–5960. 77. Su, J.-Q., Nelson, T.W., McNelley, T.R., Mishra, R.S., “Development of nanocrystalline structure in

Cu during friction stir processing (FSP),” (2011) Materials Science and Engineering A 528 (16-17), pp. 5458-5464.

78. Yuan, W., Mishra, R.S., Webb, S., Chen, Y.L., Carlson, B., Herling, D.R., Grant, G.J., “Effect of tool design and process parameters on properties of Al alloy 6016 friction stir spot welds,” ( 2011) Journal of Materials Processing Technology 211 (6), pp. 972-977.

79. Kapoor, R., Rao, V.S.H., Mishra, R.S., Baumann, J.A., Grant, G., “Probabilistic fatigue life prediction model for alloys with defects: Applied to A206,” (2011) Acta Materialia 59 (9), pp. 3447-3462.

80. De, P.S., Mishra, R.S., “Friction stir welding of precipitation strengthened aluminium alloys: Scope and challenges,” (2011) Science and Technology of Welding and Joining 16 (4), pp. 343-347.

81. Kumar, N., Mishra, R.S., Huskamp, C.S., Sankaran, K.K., “Critical grain size for change in deformation behavior in ultrafine grained Al-Mg-Sc alloy,” (2011) Scripta Materialia 64 (6), pp. 576-579.

82. Yuan, W., Mishra, R.S., Carlson, B., Mishra, R.K., Verma, R., Kubic, R., “Effect of texture on the mechanical behavior of ultrafine grained magnesium alloy,” (2011) Scripta Materialia 64 (6), pp. 580-583.

83. Balasubramanian, N., Mishra, R.S., Krishnamurthy, K., “Process forces during friction stir channeling in an aluminum alloy,” (2011) Journal of Materials Processing Technology 211 (2), pp. 305-311.

84. De, P.S., Su, J.Q., Mishra, R.S., “A stress-strain model for a two-phase ultrafine-grained aluminum alloy,” (2011) Scripta Materialia 64 (1), pp. 57-60.

2010 85. Balasubramanian, N., Mishra, R.S., Krishnamurthy, K, “Development of a mechanistic model for

friction stir channeling,” (2010) Journal of Manufacturing Science and Engineering, Transactions of the ASME 132 (5), art. no. 054504 0.

86. Prabhakaran, R., Wang, J., Yuan, W., Chitrada, K., Cole, J., Charit, I., Mishra, R., “Friction stir welding of oxide dispersion strengthened alloys,” (2010) Transactions of the American Nuclear Society 102, pp. 857-858.

87. Jana, S., Mishra, R.S., Baumann, J.A., Grant, G., “Effect of process parameters on abnormal grain growth during friction stir processing of a cast Al alloy,” (2010) Materials Science and Engineering A 528 (1), pp. 189-199.

88. De, P.S., Mishra, R.S., “Microstructural evolution during fatigue of ultrafine grained aluminum alloy,” (2010) Materials Science and Engineering A 527 (29-30), pp. 7719-7730.

89. Jana, S., Mishra, R.S., Baumann, J.A., Grant, G.J., “Effect of Friction Stir Processing on Microstructure and Tensile Properties of an Investment Cast Al-7Si-0.6Mg Alloy,” (2010) Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 41, pp 2507- 2521.

90. Ma, Z.Y., Liu, F.C., Mishra, R.S., “Superplastic deformation mechanism of an ultrafine-grained aluminum alloy produced by friction stir processing,” (2010) Acta Materialia 58 (14), pp. 4693-4704.

91. Ghosh, M., Kumar, K., Mishra, R.S., “Analysis of microstructural evolution during friction stir welding of ultrahigh-strength steel,” (2010) Scripta Materialia 63 pp. 851-854.

92. Kapoor, R., Kumar, N., Mishra, R.S., Huskamp, C.S., Sankaran, K.K., “Influence of fraction of high angle boundaries on the mechanical behavior of an ultrafine grained Al-Mg alloy,” (2010) Materials Science and Engineering A 527 (20), pp. 5246-5254.

93. Deshmukh, S.P., Mishra, R.S., Robertson, I.M., “Investigation of creep threshold stresses using in


situ TEM straining experiment in an Al-5Y2O3-10SiC composite,” (2010) Materials Science and Engineering A 527 (9), pp. 2390-2397.

94. Kapoor, R., De, P.S., Mishra, R.S., “An analysis of strength and ductility of ultrafine grained Al alloys,” (2010) Materials Science Forum 633-634, pp. 165-177.

95. Jana, S., Mishra, R.S., Baumann, J.B., Grant, G., “Effect of friction stir processing on fatigue behavior of an investment cast Al-7Si-0.6 Mg alloy,” (2010) Acta Materialia 58 (3), pp. 989-1003.

96. Yadava, M.K., Mishra, R.S., Chen, Y.L., Carlson, B., Grant, G.J., “Study of friction stir joining of thin aluminium sheets in lap joint configuration,” (2010) Science and Technology of Welding and Joining 15 (1), pp. 70-75.

97. Bhargava, G., Yuan, W., Webb, S.S., Mishra, R.S., “Influence of texture on mechanical behavior of friction-stir-processed magnesium alloy,” (2010) Metallurgical and Materials Transactions A 41 (1), pp. 13-17.

98. Freeney, T.A., Mishra, R.S., “Effect of Friction Stir Processing on Microstructure and Mechanical Properties of a Cast-Magnesium-Rare Earth Alloy,” (2010) Metallurgical and Materials Transactions A 41 (1) pp. 73-84.

2009 99. Jana, S., Mishra, R.S., Baumann, J.B., Grant, G., “Effect of stress ratio on the fatigue behavior of a

friction stir processed cast Al-Si-Mg alloy,” (2009) Scripta Materialia 61 (10), pp. 992-995. 100. Rodelas, J., Hilmas, G., Mishra, R.S., “Sinterbonding cobalt-cemented tungsten carbide to tungsten

heavy alloys,” (2009) International Journal of Refractory Metals and Hard Materials 27 (5), pp. 835-841.

101. Hatamleh, O., Mishra, R.S., Oliveras, O., “Peening effects on mechanical properties in friction stir welded AA 2195 at elevated and cryogenic temperatures,” (2009) Materials and Design 30 (8), pp. 3165-3173.

102. Dutta, A., De, P.S., Mishra, R.S., Watson, T.J., “Deformation behavior of an ultrafine-grained Al-Ni-Y-Co-Sc alloy,” (2009) Materials Science and Engineering A 513-514 (C), pp. 239-246.

103. Mishra, R.S., “Dislocation-particle interaction at elevated temperatures,” (2009) JOM 61 (2), pp. 52-55.

104. Dixit, V., Mishra, R.S., Lederich, R.J., Talwar, R., “Influence of process parameters on microstructural evolution and mechanical properties in friction stirred Al-2024 (T3) alloy,” (2009) Science and Technology of Welding and Joining 14 (4), pp. 346-355.

105. García-Bernal, M.A., Mishra, R.S., Verma, R., Hernández-Silva, D., “High strain rate superplasticity in continuous cast Al-Mg alloys prepared via friction stir processing,” (2009) Scripta Materialia 60 (10), pp. 850-853.

106. Balasubramanian, N., Mishra, R.S., Krishnamurthy, K., “Friction stir channeling: Characterization of the channels,” (2009) Journal of Materials Processing Technology 209 (8), pp. 3696-3704.

107. Ma, Z.Y., Mishra, R.S., Liu, F.C., “Superplastic behavior of micro-regions in two-pass friction stir processed 7075Al alloy,” (2009) Materials Science and Engineering A. 505 (1-2), pp. 70-78.

108. De, P.S., Mishra, R.S., Smith, C.B., “Effect of microstructure on fatigue life and fracture morphology in an aluminum alloy,” (2009) Scripta Materialia, 60 (7), pp. 500-503.

109. Balasubramanian, N., Gattu, B., Mishra, R.S., “Process forces during friction stir welding of aluminium alloys,” (2009) Science and Technology of Welding and Joining 14 (2), pp. 141-145.

110. Ross, N.C., Mishra, R.S., Senkov, O.N., Miracle, D.B., “Observation of Shear Thickening during Compressive Flow of Mg54Y11Ag7Cu28 in the Supercooled Liquid Region,” (2009) Metallurgical and Materials Transactions A, 40, pp. 1-3.

2008 111. Wang, Y., Mishra, R.S., Watson, T.J., “Mechanical behavior of devitrified ultrafine-grained Al-

4.0Y-4.0Ni-0.9Co matrix composites,” (2008) Scripta Materialia, 59 (10), pp. 1079-1082. 112. Shi, X.L., Mishra, R.S., Watson, T.J., “Effect of temperature and strain rate on tensile behavior of

ultrafine-grained aluminum alloys”, (2008) Materials Science and Engineering A, 494 (1-2), pp.


247-252. 113. De, P.S., Obermark, C.M., Mishra, R.S., “Development of a reversible bending fatigue test bed to

evaluate bulk properties using sub-size specimens,” (2008) Journal of Testing and Evaluation, 36 (4), pp. 402-405.

114. Mishra, R.S. Preface to the Viewpoint Set on friction stir processing (2008) Scripta Materialia, 58 (5), pp. 325-326.

115. Colligan, K.J., Mishra, R.S. A conceptual model for the process variables related to heat generation in friction stir welding of aluminum (2008) Scripta Materialia, 58 (5), pp. 327-331.

116. Charit, I., Mishra, R.S. Abnormal grain growth in friction stir processed alloys (2008) Scripta Materialia, 58 (5), pp. 367-371.

117. Sharma, S.R., Mishra, R.S. Fatigue crack growth behavior of friction stir processed aluminum alloy (2008) Scripta Materialia, 59 (2008) 395–398.

118. Dixit, M., Mishra, R.S., Sankaran, K.K. Structure-property correlations in Al 7050 and Al 7055 high-strength aluminum alloys (2008) Materials Science and Engineering A, 478 (1-2), pp. 163-172.

2007 119. V. Dixit, R. S. Mishra, R. J. Lederich and R. Talwar, “Effect of initial temper on mechanical

properties of friction stir welded Al-2024 alloy,” Science and Technology of Welding and Joining, 12 (2007) 334-40.

120. L.B. Johannes, I. Charit, R.S. Mishra and R. Verma, “Enhanced superplasticity through friction stir processing in continuous cast AA5083 aluminum,” Materials Science and Engineering A 464 (2007) 351–357.

121. L.B. Johannes and R.S. Mishra, “Multiple passes of friction stir processing for the creation of superplastic 7075 aluminum,” Materials Science and Engineering A, 464 (2007) 255–260.

122. Y. Wang and R.S. Mishra, “Finite element simulation of selective superplastic forming of friction stir processed 7075 Al alloy,” Materials Science and Engineering A, 463 (2007) 245–248.

123. Y. Wang, X.L. Shi, R.S. Mishra and T.J. Watson, “Friction stir welding of devitrified Al–4.0Y–4.0Ni–0.9Co alloy produced by amorphous powders,” Scripta Materialia, 56 (2007) 971-974.

124. Y. Wang, X.L. Shi, R.S. Mishra and T.J. Watson, “Ductility improvement in devitrified ultrafine-grained Al–4.0Y–4.0Ni–0.9Co alloy via hot rolling,” Scripta Materialia, 56 (2007) 923-925.

125. M. Dixit, J. W. Newkirk and R. S. Mishra, “Properties of friction stir-processed Al 1100-NiTi composite,” Scripta Materialia, 56 (2007) 541-4.

2006 126. Z. Y. Ma, S. R. Sharma and R. S. Mishra, “Microstructural Modification of As-Cast Al-Si-Mg

Alloy by Friction Stir Processing,” Metallurgical and Materials Transactions A. 37A (2006) 3323-3336.

127. Z. Y. Ma, S. R. Sharma and R. S. Mishra, “Effect of friction stir processing on the microstructure of cast A356 aluminum,” Materials Science and Engineering A, 433 (2006) 269-278.

128. J. E. Spowart, A. Tewari, A. M. Gokhale, R. S. Mishra and D. B. Miracle, “Characterization of the effects of friction stir processing on microstructural changes in DRA composites,” Materials Science & Engineering A, vol.428, no.1-2, 25 July 2006, pp. 80-90.

129. L. B Johannes, L. L. Yowell, E. Sosa, S. Arepalli and R. S Mishra, “Survivability of single-walled carbon nanotubes during friction stir processing,” Nanotechnology, 17 (2006) 3081-3084.

130. Z. Y. Ma, S. R. Sharma and R. S. Mishra, “Effect of multiple-pass friction stir processing on microstructure and tensile properties of a cast aluminum-silicon alloy,” Scripta Materialia, 54 (2006) 1623-1626.

131. S. Tandon, S. R. Deshmukh, R. S. Mishra, K. Krishnamurthy, R. Tayloe, Fracture criteria prediction in wiredrawing using finite element modeling. Wire Journal International, vol.39, no.1, Jan. 2006, pp. 58-62.

2005


132. S. P. Deshmukh, R. S. Mishra and K. L. Kendig, „Creep behavior of extruded Al-6Mg-1Sc-1Zr-10 vol.% SiCp composite,” Materials Science & Engineering A, 410 (2005) 53-57.

133. R. S. Mishra and Z. Y. Ma, “Friction Stir Welding and Processing,” Materials Science and Engineering R, 50 (2005) 1-78.

134. I. Charit and R. S. Mishra, “Low temperature superplasticity in a friction-stir-processed ultrafine grained Al-Zn-Mg-Sc alloy,” Acta Materialia, 53 (2005) 4211-4223.

135. R B. Grishaber, A. V. Sergueeva, R. S. Mishra and A. K. Mukherjee, “Laminated metal composites - High temperature deformation behavior”, Materials Science & Engineering A, 403 (2005) 17-24.

136. Z. Y. Ma and R. S. Mishra, “Development of ultrafine-grained microstructure and low temperature (0.48 Tm) superplasticity in friction stir processed Al-Mg-Zr,” Scripta Materialia, 53 (2005) 75-80.

137. S. Mohan and R. S. Mishra, “Friction stir microforming of superplastic alloys,” Microsystem Technologies, 11 (2005) 226-229.

138. Z. Y. Ma, R. S. Mishra, M. W. Mahoney and R. Grimes, “Effect of Friction Stir Processing on the Kinetics of Superplastic Deformation in an Al-Mg-Zr Alloy,” Metallurgical and Materials Transactions A., 36A (2005) 1447-1458.

139. X. L. Shi, R. S. Mishra and T. J. Watson, “Elevated temperature deformation behavior of nanostructured Al-Ni-Gd-Fe alloys,” Scripta Materialia, 52 (2005) 887-891.

140. A. Dutta, I. Charit, L. B. Johannes and R S. Mishra, “Deep cup forming by superplastic punch stretching of friction stir processed 7075 Al alloy”, Materials Science & Engineering A, 395 (2005) 173-179.

2004 141. R. W. Hayes, P. B. Berbon and R. S. Mishra, “Microstructure characterization and creep

deformation of an Al-10 Wt Pct Ti-2 Wt Pct Cu Nanocomposite,” Metallurgical and Materials Transactions A., 35A (2004) 3855-3861.

142. I. Charit and R. S. Mishra, “Evaluation of microstructure and superplasticity in friction stir processed 5083 Al alloy,” Journal of Materials Research, 19, (2004) 3329-3342.

143. A. J. Kulkarni, K. Krishnamurthy, S. P. Deshmukh and R. S. Mishra, “Effect of particle size distribution on strength of precipitation-hardened alloys,” Journal of Materials Research, 19 (2004) 2765.

144. S. P. Deshmukh, R. S. Mishra and K. L. Kendig, “Creep behavior and threshold stress of an extruded Al-6Mg-2Sc-lZr alloy,” Materials Science and Engineering A, 381 (2004) 381-385.

145. S. R. Sharma, Z. Y. Ma and R. S. Mishra, “Effect of friction stir processing on fatigue behavior of A356 alloy,” Scripta Materialia, 51 (2004) 237.

146. A. Kulkarni, K. Krishnamurthy; S. P. Deshmukh and R. S. Mishra, “Microstructural optimization of alloys using a genetic algorithm,” Materials Science and Engineering A., 372 (2004) 213.

147. Z. Y. Ma, R. S. Mishra and M. W. Mahoney, “Superplasticity in cast A356 induced via friction stir processing,” Scripta Materialia, 50 (2004) 931.

2003 148. Z. Y. Ma and R. S. Mishra, Cavitation in superplastic 7075Al alloys prepared via friction stir

processing,” Acta Materialia, 51 (2003) 3551. 149. I. Charit and R. S. Mishra, “High strain rate superplasticity in a commercial 2024 Al alloy via

friction stir processing,” Materials Science and Engineering A, A359 (2003) 290. 150. J.-Q. Su, T.W. Nelson, R. Mishra, M. Mahoney, “Microstructural investigation of friction stir

welded 7050-T651 aluminium” Acta Materialia, 51 (2003) 713-729. 151. Z. Y. Ma, R. S. Mishra, M. W. Mahoney, and R. Grimes, “High strain rate superplasticity in friction

stir processed Al-Mg-Zr alloy,” Materials Science and Engineering A, A351 (2003) 148. 152. R. S. Mishra, Z. Y. Ma and I. Charit, “Friction stir processing: A novel technique for fabrication of

surface composite,” Materials Science and Engineering A, A341 (2003) 307. 2002


153. Z. Y. Ma, R. S. Mishra and M. W. Mahoney, “Superplastic deformation behavior of friction stir processed 7075Al alloy,” Acta Materialia, 50 (2002) 4419.

154. Z. Y. Ma, R. S. Mishra and S. C. Tjong,” High-temperature creep behaviour of TiC particulate reinforced Ti-6Al-4V alloy composite,” Acta Materialia, 50 (2002) 4293.

155. I. Charit, R. S. Mishra and M. W. Mahoney, “Multi-sheet structures in 7475 aluminum by friction stir welding in concert with post-weld superplastic forming,” Scripta Materialia, 47 (2002) 631.

2001 156. R. S. Mishra, R. Z. Valiev, S. X. McFadden, R. K. Islamgaliev and A. K. Mukherjee, “High strain

rate superplasticity from nanocrystalline Al alloy 1420 at low temperatures,” Philosophical Magazine A, 81 (2001) 37.

157. R.S. Mishra and A.K. Mukherjee, “Processing of high hardness-high toughness alumina matrix nanocomposites,” Materials Science and Engineering, A301 (2001) 97.

158. R. K. Islamgaliev, R. Z. Valiev, R. S. Mishra and A. K. Mukherjee, “Enhanced superplastic properties in bulk metastable nanostructured alloys,” Materials Science and Engineering A, A304-A306 (2001) 206.

159. R. S. Mishra, “Processing commercial aluminum alloys for high strain rate superplasticity,” Journal of Materials, 53(3) (2001) 23.

160. P. B. Berbon, W. H. Bingel, R. S. Mishra, C. C. Bampton and M. W. Mahoney, “Friction stir processing: a tool to homogenize nanocomposite aluminum alloys,” Scripta Materialia, 44 (2001) 61.

161. R. Z. Valiev, C. Song, S. X. McFadden, A. K. Mukherjee and R. S. Mishra, “TEM/HREM observations of nanostructured superplastic Ni3Al,” Philosophical Magazine, 81A (2001) 25.

162. R. S. Mishra, V. V Stolyarov, C. Echer, R. Z. Valiev, A. K. Mukherjee, “Mechanical behavior and superplasticity of a severe plastic deformation processed nanocrystalline Ti-6Al-4V alloy,” Materials Science and Engineering, A298 (2001) 44.

2000 163. S.X. McFadden, A.P. Zhilyaev, R. S. Mishra and A.K. Mukherjee, “Observations of low-

temperature superplasticity in electrodepositedultrafine grained nickel,” Materials Letters, 45 (2000) 345.

164. R. S. Mishra and A. K. Mukherjee, “An analysis of the role of grain size on superplasticity of γ titanium aluminides,” Journal of Materials Science, 35 (2000) 147.

165. Y. H. Han, R. S. Mishra, M. J. Gasch, H. B. Lee and A. K. Mukherjee, “Processing of Si3N4/SiC and boron-modified nanocomposites via ceramic precursor route,” Korean Journal of Ceramics, 6 (2000), 245.

166. S. X. McFadden, A. V. Sergueeva, R. S. Mishra and A. K. Mukherjee, “High strain rate superplasticity in microcrystalline and nanocrystalline materials,” Materials Science & Technology, 16 (2000) 1340.

167. R. S. Mishra and A. K. Mukherjee, “Electric pulse assisted rapid consolidation of ultrafine grained alumina matrix composites,” Materials Science & Engineering, A287 (2000) 178.

168. R. S. Mishra, M. W. Mahoney, S. X. McFadden, N. A. Mara, and A. K. Mukherjee, “High strain rate superplasticity in a friction stir processed 7075 al alloy,” Scripta Materialia, 42 (2000) 163.

1999 169. R. S. Mishra, “Designing DRA Composites for High Creep Strength,” Journal Of Metals, 51(11)

(1999) 65. 170. R. S. Mishra, R. Z. Valiev, S. X. McFadden, R. K. Islamgaliev and A. K. Mukherjee, “Severe

plastic deformation processing and High Strain Rate Superplasticity in an Aluminum Matrix Composite,” Scripta Materialia, 40 (1999) 1151.

171. S. X. McFadden, R. S. Mishra, R. Z. Valiev, A. P. Zhilyaev and A. K. Mukherjee, “Low temperature superplasticity in nanocrystalline nickel and metal alloys,” Nature, 398 (1999) 684.


172. R. S. Mishra, V. Jayaram, B. Majumdar, C. E. Lesher and A. K. Mukherjee, “ZrO2-Al2O3 nanocomposite by high pressure sintering of spray pyrolysed powders,” Journal of Materials Research, 14 (1999) 834.

173. R. S. Mishra, S. X. McFadden, R. Z. Valiev and A. K. Mukherjee, “Deformation mechanisms and tensile superplasticity in nanocrystalline materials,” Journal of Metals, 51(1) (1999) 37.

1998 174. R. S. Mishra, R. Z. Valiev, S. X. McFadden and A. K. Mukherjee, “Tensile Superplasticity in

Nanocrystalline Nickel Aluminide” Materials Science and Engineering A, A252 (1998) 174. 175. R. S. Mishra, R. H. Lu, R. B. Grishaber and A. K. Mukherjee, “Effect of Stressed Pre-exposure on

the Creep Strengthening of a 2009Al-SiCw Composite” Scripta Materialia, 38 (1998) 1819. 176. R. S. Mishra, S. H. Risbud and A. K. Mukherjee, “Effect of electric pulsing on densification of α

and γ alumina,” Journal of Materials Research, 13 (1998) 86. 1997 177. R. S. Mishra, T. R. Bieler and A. K. Mukherjee, “Mechanism of high strain rate superplasticity in

aluminum alloy composites,” Acta Metallurgica et Materialia., 45 (1997) 561. 178. A. B. Pandey, R. S. Mishra, A. G. Paradkar and Y. R. Mahajan, “Steady state creep behaviour of an

Al-Al2O3 alloy,” Acta Metallurgica et Materialia, 45 (1997) 1297. 179. R. Z. Valiev, G. F. Korznikova, K. Y. Mulyukov, R. S. Mishra and A. K. Mukherjee, “Saturation

magnetization and curie temperature of nanocrystalline nickel,” Philosophical Magazine B, 75 (1997) 803.

1996 180. T. R. Bieler, R. S. Mishra and A. K. Mukherjee, “High strain rate superplasticity in aluminum

matrix composites,” JOM, 48 (2) (1996) 52. 181. A. B. Pandey, R. S. Mishra and Y. R. Mahajan, "Effect of a solid solution on the steady state creep

behavior of an aluminum-matrix composite," Metall. Trans. A, 27A (1996) 305. 182. S. Ranganath and R. S. Mishra, "Steady state creep behavior of particulate reinforced titanium

matrix composites," Acta Metallurgica et Materialia, 44 (1996) 927. 183. R. Z. Valiev, R. S. Mishra, J. Groza and A. K. Mukherjee, “Processing of nanostructured nickel by

severe plastic deformation consolidation of ball milled powder,” Scripta Metall. Mater., 34 (1996) 1443.

184. R. S. Mishra, A. K. Mukherjee, D. K. Mukhopadhyay, C. Suryanarayana and F. H. Froes, “High temperature deformation behavior of a nanocrystalline titanium aluminide,” Scripta Metall. Mater., 34 (1996) 1765.

185. A. B. Pandey, R. S. Mishra and Y. R. Mahajan, “Effect of isothermal heat treatment on the creep behaviour of an Al-TiCp composite,” Materials Science and Engineering A, A206 (1996) 270.

186. S. Ranganath, T. Roy and R. S. Mishra, “Microstructure and deformation of TiB+Ti2C reinforced titanium matrix composites,” Materials Science and Technology, 12 (1996) 219.

187. T. R. Bieler, R. S. Mishra and A. K. Mukherjee, “Superplasticity in hard-to-machine materials,” Annual Review of Materials Science, 26 (1996) 75.

188. R. S. Mishra, C. Echer, C. C. Bampton, T. R. Bieler and A. K. Mukherjee, “Influence of temperature on segregation in 2009 Al-SiCw composite and its implication on high strain rate superplasticity,” Scripta Metall. Mater., 35 (1996) 247.

189. R. S. Mishra, A. K. Mukherjee, K. Yamazaki and K. Shoda, “Effect of TiO2 doping on rapid densification of alumina by plasma activated sintering,” J. Mater. Res., 11 (1996) 1144.

190. R. B. Grishaber, R. S. Mishra and A. K. Mukherjee, “Effect of testing environment on intergranular microsuperplasticity in aluminum MMC,” Mater. Sci. Eng., A220 (1996) 78.

191. R. S. Mishra, C. E. Lesher and A. K. Mukherjee, “High pressure sintering of nanocrystalline γ-Al2O3,” J. American Ceramic Society, 79 (1996) 2989.

192. R. Z. Valiev, R. S. Mishra and A. K. Mukherjee, “Ultra-fine grained nickel produced by severe


plastic deformation,” Annales de Chimie-Science des Materiaux, 21 (1996) 399. 1995 193. R. S. Mishra, T. R. Bieler and A. K. Mukherjee, "Superplasticity in powder metallurgy aluminium

alloys and composites," Acta Metallurgica et Materialia, 43 (1995) 877. 194. T. K. Nandy, R. S. Mishra, A. K. Gogia and D. Banerjee, "The effect of aluminium on the creep

behaviour of titanium aluminide alloys," Scripta Metallurgica et Materialia, 32 (1995) 851. 195. V. K. Varma, R. S. Mishra, V. A. Joshi, B. V. Rao, K. K. Sharma and D. Banerjee, “Effect of heat

treatment on microstructure and mechanical properties of CM247LC cast superalloy rotor,” Trans. Indian Institute of Metals, 48 (1995) 69.

196. D. M. Farkas, R. S. Mishra and A. K. Mukherjee, "Instantaneous strain measurements during high temperature stress cycling of a dispersion-strengthened niobium alloy," Scripta Metallurgica et Materialia, 32 (1995) 1725.

197. R. S. Mishra, S. P. Singh, A. M. Srirammurthy and M. C. Pandey, Effect of grain boundary orientation on creep behaviour of a directionally solidified CM 247 LC Alloy," Materials Science and Technology, 11 (1995) 341.

198. R. S. Mishra, J. Schneider, J. F. Shackelford and A. K. Mukherjee, "Plasma activated sintering of nanocrystalline γ-Al2O3," NanoStructured Materials, 5 (1995) 525.

199. R. S. Mishra, A. B. Pandey, K. S. Prasad and A. K. Mukherjee, "Microstructure of a creep tested Al-20 vol.% SiC composite," Scripta Metallurgica et Materialia, 33 (1995) 479.

200. R. S. Mishra, A. B. Pandey and A. K. Mukherjee, "An evaluation of steady state creep mechanism in an Al-Mg/26 Al2O3f composite, Materials Science and Engineering A, 201 (1995) 205.

1994 201. R. S. Mishra, T. K. Nandy and G. W. Greenwood, "The threshold stress for dislocation-particle

interaction controlled creep," Philosophical Magazine A, 69 (1994) 1097. 202. R. S. Mishra and D. Banerjee, "Transient mechanisms in diffusional creep in a titanium aluminide,"

Scripta Metallurgica et Materialia, 31 (1994) 1555. 203. A. B. Pandey, R. S. Mishra and Y. R. Mahajan, "High temperature creep of Al-TiB2 particulate

composites," Materials Science and Engineering A, A189 (1994) 95. 1993 204. T. K. Nandy, R. S. Mishra and D. Banerjee, "Creep behaviour of an orthorhombic phase in a Ti-Al-

Nb alloy," Scripta Metallurgica et Materialia, 27 (1993) 569. 205. A. B. Pandey, R. S. Mishra and Y. R. Mahajan, "Creep fracture in Al-SiC composites," Journal of

Materials Science, 28 (1993) 2943. 206. R. S. Mishra, A. G. Paradkar and K. N. Rao, "Steady state creep behaviour of a rapidly solidified

and further processed Al-5 wt% Ti alloy," Acta Metallurgica et Materialia, 41 (1993) 2243. 207. R. S. Mishra, A. K. Singh and T. Roy, "Creep of an AlCoCu Quasicrystal," Philosophical

Magazine Letters, 68 (1993) 225. 208. A. B. Pandey, R. S. Mishra and Y. R. Mahajan, "On the anomalous creep behaviour of a XD Al-

TiB2 composite," Scripta Metallurgica et Materialia, 29 (1993) 1199. 1992 209. R. S. Mishra, "Dislocation creep mechanism map for dispersion strengthened materials," Scripta

Metallurgica et Materialia, 26 (1992) 309. 210. D. K. Das, A. G. Paradkar and R. S. Mishra, "Microstructure and creep behaviour of laser surface

alloyed Al-Ni alloy," Scripta Metallurgica et Materialia, 26 (1992), 1211. 211. R. S. Mishra, T. R. Bieler and A. K. Mukherjee, "On the superplasticity of mechanically alloyed

aluminium alloys," Scripta Metallurgica et Materialia, 26 (1992), 1605. 212. A. B. Pandey, R. S. Mishra and Y. R. Mahajan, "Steady state creep behaviour of silicon carbide

particulate reinforced aluminium alloys," Acta Metallurgica et Materialia, 40 (1992), 2045. 213. A. G. Paradkar, K. N. Rao, P. V. Rao and R. S. Mishra, "Microstructural characterization of rapidly


solidified Al-Fe-MM alloy with Mg addition," International Journal of Rapid Solidification, 7 (1992), 167.

1991 214. R. S. Mishra and A. K. Mukherjee, "On the superplasticity in silicon carbide reinforced aluminium

composites," Scripta Metallurgica, 25 (199l) 271. 1990 215. R. S. Mishra, H. Jones and G. W. Greenwood, "Creep of a low carbon steel at low stresses and

intermediate temperatures," Acta Metallurgica, 38 (1990) 461. 216. R. S. Mishra, H. Jones and G. W. Greenwood, "Creep of a rapidly solidified and further processed

Al-Cr-Zr alloy," Int. J. Rapid Solidification, 5 (1990) 149. 217. R. S. Mishra, H. Jones and G. W. Greenwood, "Creep of Pb-2.5Sb-0.2Sn alloy at low stresses,"

Materials Science and Technology, 6 (1990) 504. 218. R. K. Singh and R. S. Mishra, "Influence of minor additions of Zr on the mechanical behaviour of a

Mg-Li-Al alloy," Scripta Metallurgica, 24 (1990) 451. 219. R. S. Mishra and A. B. Pandey, "Some observations on the high-temperature creep behaviour of

6061 Al-SiC composites," Metallurgical Transactions A, 21A (1990) 2089. 220. R. S. Mishra and D. Banerjee, "On the influence of cooling rate in solution treatment for a Ti-25Al-

llNb alloy," Scripta Metallurgica, 24 (1990) 1477. 221. A. B. Pandey, R. S. Mishra and Y. R. Mahajan, "Creep behaviour of an aluminium-silicon carbide

particulate composite," Scripta Metallurgica, 24 (1990) 1565. 222. R. S. Mishra and D. Banerjee, "Microstructure and steady state creep in Ti-24Al-llNb," Materials

Science and Engineering, A130 (1990) 151. 1989 223. R. S. Mishra, H. Jones and G. W. Greenwood, "Some correlations between parameters relating to

grain boundary self diffusion in silver," Materials Science and Engineering A, 117 (1989) L21. 224. R. S. Mishra, H. Jones and G. W. Greenwood, "An analysis of low stress creep data for coarse-

grained pure lead," Materials Letters, 8 (1989) 187. 225. R. S. Mishra, H. Jones and G. W. Greenwood, "On the threshold stress for diffusional creep in pure

metals," Philosophical Magazine A, 60 (1989) 581. 1988 226. R. S. Mishra and G. S. Murty, "The Stress-strain rate behaviour of superplastic Zn-Al eutectoid

alloy," J. Materials Science, 23 (1988) 593. 227. R. S. Mishra and G. S. Murty, "Effect of concurrent grain growth on the stress-strain rate curve of

superplastic materials," J. Materials Science Letters, 7 (1988) 185. 228. R. S. Mishra, H. Jones and G. W. Greenwood, "Enhanced diffusional creep: The effect of grain

growth," Scripta Metallurgica, 22 (1988) 323. 229. R. S. Mishra, H. Jones and G. W. Greenwood, "An empirical correlation for the grain boundary

diffusion of impurities in copper," J. Materials Science Letters, 7 (1988) 728. 1987 230. A. O. Sepulveda and R. S. Mishra, "An analysis of grain-growth data in duplex materials on static

annealing and during superplastic deformation," J. Materials Science, 22 (1987) 2153. B. Conference Proceedings

2013 231.Suresh, K.S., Kumar, N., Mishra, R.S., Suwas, S., Evolution of microstructure and texture in friction

stir processed Al-Mg-Mn alloy, 2013, Materials Science Forum 753 , pp. 247-250. 232.Thompson, B., Doherty, K., Su, J., Mishra, R., Nano-sized grain refinement using friction stir

processing, 2013, TMS Annual Meeting, pp. 9-19. 233.Komarasamy, M., Mishra, R.S., Baumann, J.A., Grant, G., Hovanski, Y., Processing, microstructure


and mechanical property correlation in Al-B4C surface composite produced via friction stir processing, 2013, TMS Annual Meeting, pp. 39-46.

234.Das, S., Mishra, R.S., Doherty, K.J., Cho, K.C., Davis, B., DeLorme, R., Magnesium based composite via friction stir processing, 2013, TMS Annual Meeting, pp. 245-252.

235.Palanivel, S., Mishra, R.S., Davis, B., DeLorme, R., Doherty, K.J., Cho, K.C., Effect of initial microstructure on the microstructural evolution and joint efficiency of a WE43 alloy during friction stir welding, 2013, TMS Annual Meeting, pp. 253-261.

2009 236. Kumar, N., Rodelas, J., Mishra, R.S., “The effects of friction stir processing on the microstructural

evolution and mechanical properties of Ti-6A1-4V alloy,” Friction Stir Welding and Processing IV, 2009 TMS Annual Meeting; San Francisco, CA, pp. 45-53.

237. Yuan, W., Rodelas, J.M., Mishra, R.S., “Friction stir welding of dual phase steel,” Friction Stir Welding and Processing IV, 2009 TMS Annual Meeting; San Francisco, CA, pp. 113-121.

238. Miles, M.P., Smith, C., Opichka, J., Cerveny, L., Mahoney, M., Mohan, A., Mishra, R.S., “Bending limits in friction stir processed 5083 aluminum plate,” Friction Stir Welding and Processing IV, 2009 TMS Annual Meeting; San Francisco, CA, pp. 135-140.

239. Rodelas, J., Mishra, R.S., Hilmas, G., Yuan, W., “Mechanical evaluation of friction stir spot welded advanced high strength steels,” Friction Stir Welding and Processing IV, 2009 TMS Annual Meeting; San Francisco, CA, pp. 171-179.

240. Gupta, K., Mishra, R.S., Chen, Y.L., Carlson, B., Gayden, X.Q., “Friction stir form welding of aluminum tubes,” Friction Stir Welding and Processing IV, 2009 TMS Annual Meeting; San Francisco, CA, pp. 191-203.

241. Yuan, W., Mishra, R.S., Webb, S.S., Chen, Y.L., Gayden, X.Q., Carlson, B., Grant, G.J., “Friction stir spot welding of AA6016 aluminum alloy,” Friction Stir Welding and Processing IV, 2009 TMS Annual Meeting; San Francisco, CA, pp. 205-214.

2008 242. Tipaji, P.K., Allada, V., Mishra, R., “A cost model for the Metal Inert Gas (MIG) welding process”,

(2008) 2007 Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC2007, 4, pp. 751-760.

243. Balasubramanian, N., Krishnamurthy, K., Mishra, R.S., “Preliminary study of pressure drop and heat transfer through a friction stir channel,” (2008) ASME International Mechanical Engineering Congress and Exposition, Proceedings, 8 PART A, pp. 933-940.

2007 244.P. Kalya, K. Krishnamurthy, R. S. Mishra and J. Baumann, “Specific Energy and Temperature

Mechanistic Models for Friction Stir Processing of Al–F35,” Friction Stir Welding and Processing IV, 2007 TMS Annual Meeting; Orlando, FL, 2007, 113-126.

245.M. Yadava, R. S. Mishra, Y.L. Chen, X.Q. Gayden and G. Grant, “Friction Stir Lap Welds of AA6111 Aluminum Alloy,” Friction Stir Welding and Processing IV, 2007 TMS Annual Meeting; Orlando, FL, 2007, 203-212.

246.R. S. Mishra, S. Webb, T. Freeney, Y.L. Chen, X.Q. Gayden, G. Grant, and D. Herling, “Friction Stir Spot Welding of 6016 Aluminum Alloy,” Friction Stir Welding and Processing IV, 2007 TMS Annual Meeting; Orlando, FL, 2007, 341-348.

247.T. Freeney, R. S. Mishra, G. Grant, and R. Verma, “Friction Stir Processing of a Cast WE43 Magnesium Alloy,” Friction Stir Welding and Processing IV, 2007 TMS Annual Meeting; Orlando, FL, 2007, 429-438.

248.S. Jana, R. S. Mishra, H. N. Chou, and D. Herling, “Friction Stir Microstructural Modification of Investment Cast F357,” Friction Stir Welding and Processing IV, 2007 TMS Annual Meeting; Orlando, FL, 2007, 439-448.

2005 249.S.P. Deshmukh and R.S. Mishra, “Effect of Stress State on Primary Creep Behavior of PM Al-Mg-


Sc-Zr-SiCp Composite,” Creep Deformation and Fracture, Design, and Life Extension, Materials Science & Technology 2005 Conference held in Pittsburgh, Pa., September 25–28, 2005, 87-96.

250.L. B. Johannes, I. Charit and R. S. Mishra, “High strain rate superplastic properties of 7075 aluminum via friction stir processing,” Friction Stir Welding and Processing III, 2005 TMS Annual Meeting; San Francisco, CA, 2005, 123-130.

2004 251.I. Charit and R. S. Mishra, “Ultrafine grained aluminum alloys via friction stir processing,” Ultrafine

Grained Materials III, Charlotte, NC, 2004, 95. 252.I. Charit, Z. Y. Ma and R. S. Mishra, “High strain rate superplasticity in aluminum alloys via friction

stir processing,” Advances in Superplasticity and Superplastic Forming Symposium, Charlotte, NC, 2004, 201.

2003 253.Z. Y. Ma, R. S. Mishra, and M.W. Mahoney, “Friction stir processing for microstructural

modification of an aluminum casting,” Friction Stir Welding and Processing II, Eds. K. V. Jata, M. W. Mahoney, R. S. Mishra, S. L. Semiatin and T. Lienert, TMS, 2003, 221.

254.S. R. Sharma, R. S. Mishra, J. A. Baumann, R.J. Lederich and R. Talwar, “Microstructural characterization of a FSW 7050 Al alloy,” Friction Stir Welding and Processing II, Eds. K. V. Jata, M. W. Mahoney, R. S. Mishra, S. L. Semiatin and T. Lienert, TMS, 2003, 209.

255.J. E. Spowart, Z. Y. Ma and R. S. Mishra, “The effect of friction stir processing (FSP) on the spatial heterogeneity of discontinuously-reinforced aluminum (DRA) microstructures,” Friction Stir Welding and Processing II, Eds. K. V. Jata, M. W. Mahoney, R. S. Mishra, S. L. Semiatin and T. Lienert, TMS, 2003, 243.

256.M. P. Miles, M. W. Mahoney, T. W. Nelson and R. S. Mishra, “Finite element simulation of plane-strain thick plate bending of friction-stir processed 2519 aluminum,” Friction Stir Welding and Processing II, Eds. K. V. Jata, M. W. Mahoney, R. S. Mishra, S. L. Semiatin and T. Lienert, TMS, 2003, 253.

257.I. Charit, Z. Y. Ma and R. S. Mishra, “Microstructural refinement and control in friction stir processed aluminum alloys for superplasticity,” Hot Deformation of Aluminum Alloys III, TMS, 2003, 331.

258.Z. Y. Ma and R. S. Mishra, “Friction stir surface composite fabrication,” Surface Engineering: in Materials Science II, TMS, 2003, 243.

2002 259.Z. Y. Ma and R. S. Mishra, “Is transition-based approach better for interpretation of dislocation

creep mechanisms in dispersion-strengthened materials?” Creep Deformation: Fundamentals and Applications, Eds. R. S. Mishra, J. Earthman and S. V. Raj, TMS, 2002, 219.

2001 260.W. C. Chen, D. E. Ferguson, H. S. Ferguson, R. S. Mishra and Z. Jin, “Development of ultrafine

grained materials using the MAXStrain (R) technology,” Superplasticity In Advanced Materials, ICSAM-2000 Materials Science Forum, 357-3 (2001) 425.

261.R. S. Mishra and M. W. Mahoney, “Friction stir processing: A new grain refinement technique to achieve high strain rate superplasticity in commercial alloys,” Superplasticity In Advanced Materials, ICSAM-2000 Materials Science Forum, 357-3 (2001) 507.

262.S. R. Sharma, R. S. Mishra, M. W. Mahoney and K. V. Jata, “Mechanical behavior of friction stir welded powder metallurgy aluminum alloys and composites,” Friction Stir Welding and Processing, Eds. K. V. Jata, M. W. Mahoney, R. S. Mishra, S. L. Semiatin and D. P. Fields, TMS, 2001, 151.

263.M. Mahoney, R. S. Mishra, T. Nelson, J. Flintoff, R. Islamgaliev and Y. Hovansky, “High strain rate, thick section superplasticity created via friction stir processing,” Friction Stir Welding and Processing, Eds. K. V. Jata, M. W. Mahoney, R. S. Mishra, S. L. Semiatin and D. P. Fields, TMS, 2001, 183.


264.R. S. Mishra, R. K. Islamgaliev, T. W. Nelson, Y. Hovansky and M. W. Mahoney, “Abnormal grain growth during high temperature exposure in friction stir processed 7050 and 2519 aluminum alloys,” Friction Stir Welding and Processing, Eds. K. V. Jata, M. W. Mahoney, R. S. Mishra, S. L. Semiatin and D. P. Fields, TMS, 2001, 205.

265.I. Charit, R. S. Mishra and K. V. Jata, “Superplastic behavior of friction stir processed aluminum-lithium alloy,” Friction Stir Welding and Processing, Eds. K. V. Jata, M. W. Mahoney, R. S. Mishra, S. L. Semiatin and D. P. Fields, TMS, 2001, 225.

266.J. Zheng, R. S. Mishra, P. B. Berbon and M. W. Mahoney, “Microstructure and mechanical behavior of friction stir processed Al-Ti-Cu alloy,” Friction Stir Welding and Processing, Eds. K. V. Jata, M. W. Mahoney, R. S. Mishra, S. L. Semiatin and D. P. Fields, TMS, 2001, 235.

2000 267.R. S. Mishra, S. R. Sharma, N. A. Mara, M. W. Mahoney, Mechanical Properties of Friction Stir

Welded Aluminum Alloys, Proceedings from Joining of Advanced and Speciality Materials, 9-11 October 2000, St. Louis, MO, ASM International, (2000) 157.

268.S. X. McFadden, R. S. Mishra and A. K. Mukherjee, “Recent developments in superplasticity”, Superplasticity - Current Status and Future Potential, Editors: P. B. Berbon, M. Z. Berbon, T. Sakuma, T. G. Langdon, (Mater. Res. Soc., Warrendale, PA 2000) 153.

269.R. S. Mishra, “An evaluation of the applicability of theoretical models for elevated temperature plasticity to ultrafine grained materials”, Ultrafine Grained Materials, Editors: R. S. Mishra, S. L. Semiatin, C. Suryanarayana, N. N. Thadhani, and T. C. Lowe, (TMS, Warrendale, PA, 2000) 421.

270.R. S. Mishra, “Effects of microstructural scale on high temperature plasticity of dispersion strengthened materials and composites”, Deformation, Processing, and Properties of Structural Materials, Editors: E. M. Taleff, C. K. Syn, and D. R. Lesner, (TMS, Warrendale, PA, 2000) 277.

1999 271. R. S. Mishra, S. X. McFadden and A. K. Mukherjee, “Analysis of tensile superplasticity in

nanomaterials,” Materials Science Forum, 304-306, (1999) 31. 272. R. S. Mishra and A. K. Mukherjee, “Primary creep and anelasticity at low stresses,” in Creep

Behavior of Advanced Materials for the 21st Century, Edited by R. S. Mishra, A. K. Mukherjee and K. L. Murty, The Minerals, Metals & Materials Society, 1999, p503.

1998 273. R. S. Mishra and A. K. Mukherjee, "Superplasticity in nanomaterials," in Superplasticity and

Superplastic Forming 1998, Edited by A. K. Ghosh and T. R. Bieler, The Minerals, Metals and Materials Society, 1998, p109.

274. S. X. McFadden, R. S. Mishra, and A. K. Mukherjee, “Observations of superplasticity in nanocrystalline matrix,” The Third Pacific Rim International Conference on Advanced Materials and Processing (PRICM-3), Edited by M. A. Imam, et al., The Minerals, Metals & Materials Society, 1998, p1733.

275. R. Z. Valiev, R. K. Islamgaliev, V. V. Stolyarov, R. S. Mishra and A. K. Mukherjee, “Processing and mechanical properties of nanocrystalline alloys prepared by severe plastic deformation,” Materials Science Forum, 269-272 (1998) 969.

276. V. Jayaram, R. S. Mishra, B. Majumdar, C. E. Lesher and A. K. Mukherjee, “Dense nanometric ZrO2-Al2O3 from spray pyrolysed powders,” Colloids and Surfaces, A: Physicochemical and Engineering Aspects, 133 (1998) 25.

1997 277. R. Z. Valiev, I. V. Alexandrov, W. A. Chiou, R. S. Mishra and A. K. Mukherjee, “Comparative

structural studies of nanocrystalline materials processed by different techniques,” Materials Science Forum, 235-238 (1997) 497.

278. R. S. Mishra, A. K. Mukherjee, D. K. Mukhopadhyay, C. Suryanarayana and F. H. Froes, “Flow behavior of a mechanically alloyed and hipped nanocrystalline γ-TiAl,” Advances in Science and


Technology of Titanium Alloy Processing, edited by I. Weiss, R. Srinivasan, P. Bania, D. Eylon and S. L. Semiatin, TMS, Warrendale, 1997, 405.

279. R. S. Mishra, R. Z. Valiev and A. K. Mukherjee, “The observation of tensile superplasticity in nanocrystalline materials,” NanoStructured Materials, 9 (1997) 473.

280. A. K. Mukherjee, R. S. Mishra and T. R. Bieler, “Some critical aspects of high strain rate superplasticity,” Materials Science Forum, 233-234 (1997) 217.

281. R. S. Mishra and A. K. Mukherjee, “The origin of high strain rate superplasticity,” Materials Science Forum, 243-245 (1997) 315.

282. A. K. Mukherjee and R. S. Mishra, “Superplasticity in intermetallics,” Materials Science Forum, 243-245 (1997) 609.

283. R. S. Mishra and A. K. Mukherjee, “Role of diffusional relaxation in fracture of dispersion strengthened materials during creep and superplasticity,” Recent Advances in Fracture, edited by R. K. Mahidhara, A. B. Geltmacher, P. Matic and K. Sadananda, TMS, Warrendale, (1997) 285.

284. R. S. Mishra and A. K. Mukherjee, “Primary creep in aluminum matrix composites,” Creep and Fracture of Engineering Materials and Structures, edited by J. C. Earthman and F. A. Mohamed, TMS, Warrendale, 1997, 237.

285. R. S. Mishra and A. K. Mukherjee, “The rate controlling mechanism in high strain rate superplasticity,” Materials Science and Engineering, A234-236 (1997)1023.

1996 286. R. S. Mishra, C. E. Lesher and A. K. Mukherjee, “High pressure consolidation of ‘nano-nano’

alumina composites,” Synthesis and Processing of Nanocrystalline Powder, edited by D. Bourell, TMS/FEMS, Warrendale, 1996, p173.

287. R. S. Mishra and A. K. Mukherjee, “Primary creep in dispersion strengthened materials,” Symposium Dedicated to Professor Johannes Weertman’s Seventieth Birthday, edited by R. J. Arsenault, D. Cole, T. Gross, H. Sizek, P. Liaw, S. Parameswaran and G. Kostorz, TMS, Warrendale, 1996, p189.

288. A. K. Mukherjee and R. S. Mishra, “Creep mechanisms in dispersion strengthened materials,” Symposium Dedicated to Professor Johannes Weertman’s Seventieth Birthday, edited by R. J. Arsenault, D. Cole, T. Gross, H. Sizek, P. Liaw, S. Parameswaran and G. Kostorz, TMS, Warrendale, 1996, p119.

289. J. A. Schneider, R. S. Mishra and A. K. Mukherjee, “Plasma activated sintering of ceramic materials,” Advanced Synthesis and Processing of Composites and Advanced Ceramics II, edited by R. Spriggs, Z. Munir and K. Logan, 1996, p 143.

290. R. S. Mishra, R. Z. Valiev and A. K. Mukherjee, “Fully dense nanocrystalline nickel by severe plastic deformation consolidation,” Materials Science Forum, 225-227 (1996) 605.

291. R. S. Mishra, D. A. West and A. K. Mukherjee, “Flow behavior of partially dense nanocrystalline alumina,” Materials Science Forum, 225-227 (1996) 611.

292. R. S. Mishra, C. E. Lesher and A. K. Mukherjee, “Nanocrystalline alumina by high pressure sintering,” Materials Science Forum, 225-227 (1996) 617.

293. R. B. Grishaber, R. S. Mishra and A. K. Mukherjee, “Mechanical behavior and constitutive modeling during high temperature deformation of Al laminated metal composites,” Layered Materials for Structural Applications, edited by J. J. Lewandowski, C. H. Ward, M. R. Jackson, W. H. Hunt, Jr., Mater. Res. Soc. Pittsburgh, PA, USA, (1996) 267.

1995 294. R. S. Mishra, D. Banerjee and A. K. Mukherjee, "Primary creep in a Ti-25 Al-11 Nb alloy,"

Materials Science and Engineering A, A192/193 (1995) 756. 295. R. S. Mishra, D. Banerjee and A. K. Mukherjee, "Surface cracking during creep of a Ti-25 Al-11

Nb alloy," Materials Science and Engineering A, A192/193 (1995) 763. 296. R. S. Mishra and A. K. Mukherjee, "The influence of volume fraction of second phase dispersoids


on activation energy for high strain rate superplasticity in aluminum alloys," in Superplasticity and Superplastic Forming 1995, Edited by A. K. Ghosh and T. R. Bieler, The Minerals, Metals and Materials Society, 1995, p171.

297. R. S. Mishra and A. K. Mukherjee, "Creep behavior of rapidly solidified and processed aluminum alloys," in Light Weight Alloys for Aerospace Applications, edited by E.W. Lee, K. V. Jata, N. H. Kim and W. E. Frazier, The Minerals, Metals and Materials Society, 1995, p319.

298. R. S. Mishra, W. B. Lee, A. K. Mukherjee and Y-W. Kim, "Mechanism of superplasticity in gamma TiAl alloys," in International Symposia on Gamma Titanium Aluminides, edited by Y-W. Kim, R. Wagner and M. Yamaguchi, (TMS 1995), p571.

299. R. S. Mishra and A. K. Mukherjee, "Effects of additives on plasma activated sintering of nanocrystalline alumina," Advances in powder metal and particulate materials - 1995, edited by M. Phillips and J. Porter, MPIF and APMI, 1995, p7-161.

300. R. S. Mishra and A. K. Mukherjee, "The origin of high strain rate superplasticity in powder metallurgy aluminum alloys," Advances in powder metal and particulate materials - 1995, edited by M. Phillips and J. Porter, MPIF and APMI, 1995, p10-155.

1994 301. T. R. Bieler, R. S. Mishra and A. K. Mukherjee, "The role of threshold stresses and incipient

melting in high strain rate superplasticity," Materials Science Forum, 170-172 (1994) 65. 1993 302. R. S. Mishra and A. K. Mukherjee, "Recent advances on superplastic metals and metal based

composites," 3rd Japan International SAMPE Symposium, (1993) 864. 303. R. Sundaresan, R. S. Mishra, T. Raghu, A. G. Paradkar and M. C. Pandey, "Steady state creep

behaviour of a mechanically alloyed Al-9wt% Ti alloy," 2nd International Conference on Structural Applications of Mechanical Alloying, (1993) 221.

304. D. Banerjee, A. K. Gogia, T. K. Nandy, K. Muraleedharan and R. S. Mishra, Structural Intermetallics, Edited by R. Darolia, J. J. Lewandowski, C. T. Liu, P. L. Martin, D. B. Miracle and M. V. Nathal, The Minerals, Metals and Materials Society, 1993, p. 19.


Research Highlights Creep and Superplasticity I have evaluated creep and superplastic behavior of a number of materials, including aluminum alloys and composites, titanium alloys, titanium aluminides, nickel base superalloys, quasicrystals, and nanocrystalline alloys. Some of my contributions include, models for threshold for diffusional creep in pure metals and dislocation creep in dispersion strengthened materials. When I started following the controversies involving creep of aluminum matrix composites, I thought that microstructural parameters influence the dominant creep micro-mechanisms. This led to the development of dislocation creep mechanism map. I still believe that the constitutive relationships for dislocation creep need to include microstructural parameters and we are working on this. Based on similar thought processes, I put together a mechanism transition map for high strain rate superplasticity in particle containing aluminum alloys. Some of my papers have been received quite well by other researchers (I have included a list of well cited papers). Working on nanocrystalline materials, I highlighted the fact that nanocrystalline materials exhibit different high temperature deformation kinetics. Detailed analysis has shown that the change in deformation rate cannot be completely accounted by the grain size alone. From 1999, I also started organizing creep symposium under the TMS umbrella. Five Key Publications on Creep and Superplasticity: • R. S. Mishra, "Dislocation creep mechanism map for dispersion strengthened materials,"

Scripta Metallurgica et Materialia, 26 (1992) 309. –First paper to extend Ashby type deformation mechanism map to dispersion strengthened materials using a microstructure based transitions for dislocation creep.

• A. B. Pandey, R. S. Mishra and Y. R. Mahajan, "Steady state creep behaviour of silicon carbide particulate reinforced aluminium alloys," Acta Metallurgica et Materialia, 40 (1992), 2045. –A very comprehensive experimental paper on effect of volume fraction and size of reinforcement phase on creep mechanism. It is one of the highly cited papers in this field.

• R. S. Mishra, A. G. Paradkar and K. N. Rao, "Steady state creep behaviour of a rapidly solidified and further processed Al-5 wt% Ti alloy," Acta Metallurgica et Materialia, 41 (1993) 2243. –This paper introduces a quantitative modification of the constitutive relationship for dislocation creep of dispersion strengthened alloys.

• R. S. Mishra, T. K. Nandy and G. W. Greenwood, "The threshold stress for dislocation-particle interaction controlled creep," Philosophical Magazine A, 69 (1994) 1097. –First paper to propose a physics-based model for attractive dislocation-particle interaction and resultant threshold stress.

• R. S. Mishra, T. R. Bieler and A. K. Mukherjee, "Superplasticity in powder metallurgy aluminium alloys and composites," Acta Metallurgica et Materialia, 43 (1995) 877. –First critical review of high strain rate superplasticity in powder metallurgy aluminum alloys and composites. The paper has been cited very well by the researchers in this field.

Processing and Properties of Bulk Ultrafine Grained Materials Ultrafine grained materials are defined as materials with grain size <1µm. I am including my efforts on nanocrystalline materials under this category. My interest in bulk ultrafine grained materials was motivated by two questions: (a) what is the critical grain size below which the micro-mechanisms involved in mechanical behavior would change? (b) how to process bulk ultrafine grained materials at elevated processing temperatures without excessive grain growth?


My initial work was on synthesis of ceramics with high-hardness and high toughness. The work resulted in a US patent on alumina-diamond nanocomposite and an invention disclosure on alumina-niobium nanocomposite apart from research publications. The main accomplishment was synthesis of fully dense nanocrystalline materials using high pressure and low temperatures. At UMR, I have focused on bulk nanostructured aluminum alloys using various powder metallurgy approaches. Most of the work has been done in collaboration with Boeing and Pratt & Whitney. We have managed to get funding from NSF, AFOSR and DARPA to pursue some of these research activities. We are currently working on obtaining a combination of high strength and good ductility. We have succeeded in obtaining strength of 700 MPa and ductility of >5% using secondary processing of rolling and forging in ultrafine grained aluminum alloy under the DARPA program with Boeing. By understanding the flow behavior at elevated temperatures, we have managed to find a narrow temperature range where secondary processing results in improved ductility without the loss of strength. Five Key Publications/Patent on Ultrafine Grained Materials: • R. S. Mishra, C. E. Lesher and A. K. Mukherjee, “High pressure sintering of nanocrystalline

γ-Al2O3,” J. American Ceramic Society, 79 (1996) 2989. –This paper reported the synthesis of fully dense nanocrystalline alumina using high pressure sintering. The use of high pressure allowed lower sintering temperatures.

• R. S. Mishra, R. Z. Valiev, S. X. McFadden and A. K. Mukherjee, “Tensile Superplasticity in Nanocrystalline Nickel Aluminide” Materials Science and Engineering A, A252 (1998) 174. –First paper to report superplasticity in nanocrystalline intermetallic alloy. Severe plastic torsional straining was used to produce bulk nanocrystalline specimens.

• R. S. Mishra, C. E. Lesher and A. K. Mukherjee, U.S. patent (5,728,637) on “Nanocrystalline Alumina-Diamond Composites,” March 17, 1998.

• S. X. McFadden, R. S. Mishra, R. Z. Valiev, A. P. Zhilyaev and A. K. Mukherjee, “Low temperature superplasticity in nanocrystalline nickel and metal alloys,” Nature, 398 (1999) 684. –First paper to report superplasticity at 0.4Tm. The paper highlighted that the grain refinement to anocrystalline range leads to extraordinary superplastic behavior.

• R. S. Mishra, R. Z. Valiev, S. X. McFadden, R. K. Islamgaliev and A. K. Mukherjee, “High strain rate superplasticity from nanocrystalline Al alloy 1420 at low temperatures,” Philosophical Magazine A, 81 (2001) 37. –This paper highlights that the ultrafine grained materials show change in micromechanism of superplastic deformation. The kinetics of deformation was found to be lower even after the typical grain size and temperature normalization.

Friction Stir Welding and Processing When I started research work on friction stir welding with the help from Murray Mahoney of Rockwell Scientific, I saw the opportunity to expand this technique beyond joining. So far we have obtained three US patents on selective superplasticity, microforming and channeling using friction stir processing. I collaborated with Kumar Jata and Murray Mahoney to start co-organizing symposium on friction stir welding and processing under the TMS umbrella. We recognized that publication of proceedings in this fast growing field will be very useful. I have written the first comprehensive review on friction stir welding and processing. It was published in the Materials Science and Engineering: Reports journal. I selected this review journal based on the impact factor (currently ~14, highest among any materials science journals). Currently we are focusing on the fundamentals of microstructural evolution during friction stir processing and its


influence on properties. Using small tool design, we have managed to produce ultrafine grained aluminum alloys with ~0.7 µm grain size in one pass. This has resulted in superplasticity below 200oC in aluminum alloys, as compared to >400oC for conventionally processed aluminum alloys. We are member of a five-university consortium on NSF Industry/University Cooperative Research Center. I have been able to get General Motors, Boeing, Pacific Northwest National Laboratory, NASA, Army Research Laboratory and Magnesium Elektron to join the UNT site as industrial members after moving from Missouri S&T. The center operates on NSF funding as well as industrial membership fees. Five Key Publications/Patents on Friction Stir Processing: • R. S. Mishra, M. W. Mahoney, S. X. McFadden, N. A. Mara, and A. K. Mukherjee, “High

strain rate superplasticity in a friction stir processed 7075 al alloy,” Scripta Materialia, 42 (2000) 163. –First paper on friction stir processing. The paper reported an innovative extension of the friction stir welding concept as a generic microstructural modification tool.

• R. S. Mishra, U.S. patent (6,655,575) on “Superplastic forming of micro components,” December 2, 2003. –This patent describes a method to use friction stir processing to fabricate microcomponents from wide range of commercial metals.

• R. S. Mishra and M. W. Mahoney, U.S. patent (6,712,916) on “Metal superplasticity enhancement and forming process,” March 30, 2004. –This patent is based on the work described in the first paper on friction stir processing published in 2000. It describes how use of friction stir processing can overcome several conventional superplastic forming limitations like, slow forming rates and limited sheet thickness. It also opens up new possibilities, such as, selective superplastic forming.

• R. S. Mishra, U.S. patent (6,923,362) on “Integral channels in metal components and fabrication thereof,” August 2, 2005. –This patent describes how a defect formation during friction stir welding can be controlled to create a new manufacturing process. The concept leads to creation of integral channels for heat exchangers.

• R. S. Mishra and Z. Y. Ma, “Friction Stir Welding and Processing,” Materials Science and Engineering R, 50 (2005) 1-78. –This is the first comprehensive review of friction stir welding and processing. It was listed by the Science Direct as 11th hottest paper among the materials science publications in the Oct.-Dec. 05 time frame. Currently (Oct.-Dec. 2012) it is 2nd hottest paper.


Selected Publications of R. S. Mishra (Impact of Scientific Publications)

It is generally very difficult to judge the quality of scientific research and publications of a researcher.

However, the ‘Science Citation Index’ provides one such measure. Hirsch has produced an h-index to measure output of a researcher based on citations (Nature, Vol 436, page 18 August 2005; arXiv:physics/0508025 v3 17 Aug 2005). A key definition is, “A scientist has index h if h of his/her Np papers have at least h citations each, and the other (Np − h) papers have fewer than h citations each. My current ‘h-index’ is 44, i.e. I have 44 papers that have been cited more than 44 times according to the Science Citation Index (as on Nov. 30, 2016). This can be considered as an indirect testimony to the impact of my research efforts. My ‘n’ is 28 based on first publication in 1987. This gives ‘m=(h/n)’ of 1.57.

To help with the interpretation of the numbers above, I am reproducing a paragraph from Hirsh’s paper,

“Based on typical h and m values found, I suggest that (with large error bars) for faculty at research universities h ~ 12 should be a typical value for advancement to tenure (associate professor), and h ~ 18 for advancement to full professor. Fellowship in the American Physical Society should occur typically for h ~ 15 to 20. Membership in the US National Academy of Sciences should typically be associated with h ~ 45 and higher except in exceptional circumstances. Note that these estimates correspond roughly to typical number of years of sustained research production assuming an m ~ 1 value, the time scales of course will be shorter for scientists with higher m values. Note that the time estimates are taken from the publication of the first paper which typically occurs some years before the Ph.D. is earned.”

Total number of publications in database-285; Listed below- Top 10, each with more than 100 citations (ISI

database has been used) Paper ISI citation 1. R. S. Mishra and Z. Y. Ma, “Friction Stir Welding and Processing,” Materials Science and

Engineering R, 50 (2005) 1-78. 1839

2. S. X. McFadden, R. S. Mishra, R. Z. Valiev, A. P. Zhilyaev and A. K. Mukherjee, “Low temperature superplasticity in nanocrystalline nickel and metal alloys,” Nature, 398 (1999) 684.

470

3. J.-Q. Su, T.W. Nelson, R. Mishra, M. Mahoney, “Microstructural investigation of friction stir welded 7050-T651 aluminium” Acta Materialia, 51 (2003) 713-729.

455

4. R. S. Mishra, Z. Y. Ma and I. Charit, “Friction stir processing: A novel technique for fabrication of surface composite,” Materials Science and Engineering A, A341 (2003) 307.

290

5. R. S. Mishra, T. R. Bieler and A. K. Mukherjee, "Superplasticity in powder metallurgy aluminium alloys and composites," Acta Metallurgica et Materialia, 43 (1995) 877.

240

6. Z. Y. Ma, R. S. Mishra and M. W. Mahoney, “Superplastic deformation behavior of friction stir processed 7075Al alloy,” Acta Materialia, 50 (2002) 4419.

221


7. A. B. Pandey, R. S. Mishra and Y. R. Mahajan, "Steady state creep behaviour of silicon carbide particulate reinforced aluminium alloys," Acta Metallurgica et Materialia, 40 (1992), 2045.

213

8. R. S. Mishra and M. W. Mahoney, “Friction stir processing: A new grain refinement technique to achieve high strain rate superplasticity in commercial alloys,” Superplasticity In Advanced Materials, ICSAM-2000 Materials Science Forum, 357-3 (2001) 507.

142

9. P. B. Berbon, W. H. Bingel, R. S. Mishra, C. C. Bampton and M. W. Mahoney, “Friction stir processing: a tool to homogenize nanocomposite aluminum alloys,” Scripta Materialia, 44 (2001) 61.

126

10. I. Charit and R. S. Mishra, “High strain rate superplasticity in a commercial 2024 Al alloy via friction stir processing,” Materials Science and Engineering A, A359 (2003) 290.

120


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