GO 2 ALLOY
Transcript of GO 2 ALLOY
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Alloy is a compound formed from a mixture of metal and other elements
An impurity atom may be atoms of other metals or non-metals such ascarbon
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The process of mixing atoms of impurities with atoms of pure metal bymelting is called alloying
An alloy is a homogeneous mixture or metallic solid solution composedof two or more elements
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Alloying a metal is done by combining it with one or more other metalsor non-metals that often enhance its properties. For example, steel isstronger thaniron, its primary element.
The physical properties, such as density, reactivity, Young's modulus,and electrical and thermal conductivity, of an alloy may not differ greatlyfrom those of its elements, but engineering properties such as tensilestrength and shear strength may be substantially different from those ofthe constituent materials.
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This is sometimes a result of the sizes of the atoms in the alloy, becauselarger atoms exert a compressive force on neighboring atoms, andsmaller atoms exert a tensile force on their neighbors, helping the alloyresist deformation.
Sometimes alloys may exhibit marked differences in behavior evenwhen small amounts of one element occur.
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For example, impurities in semi-conducting ferromagnetic alloys lead todifferent properties, as first predicted by White, Hogan, Suhl, Tian Abrieand Nakamura
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Some alloys are made by melting and mixing two ormore metals.
Bronze, an alloy of copper and tin, was the first alloydiscovered, during the prehistoric period now known asthe bronze age; it was harder than pure copper andoriginally used to make tools and weapons, but was latersuperseded by metals and alloys with better properties.
In later times bronze has been usedfor ornaments, bells, statues, and bearings. Brass is analloy made from copper and zinc.
Unlike pure metals, most alloys do not have asingle melting point, but a melting range in which the
material is a mixture of solid and liquid phases.
The temperature at which melting begins is calledthe solidus, and the temperature when melting is justcomplete is called the liquidus.
However, for most alloys there is a particular proportionof constituents (in rare cases two)the eutectic mixturewhich gives the alloy a uniquemelting point
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THE USES OF DIFFERENT TYPES OF ALLOY
The components of various alloys contain metallic and non-metallic elements. There
are a large number of possible combinations of different metals and each has its own
specific set of properties. The Alloys and the metals are covered by standards. The
Uses for alloys are limitless depending on the materials involved and the complexity
of the alloy. The alloys are used in an extensive range of aircrafts, military,
commercial, industrial, medical, residential and manufacturing applications. Alloys
like Aluminium, Copper, Nickel, Stainless steel, Titanium all have different uses in
various applications
Uses ofAluminium
Alloys
Aluminium when combinedwith other metals givesstrength and specific
characteristics for aparticular use.
Aluminium alloys areextensively used in the
production of automotiveengine parts. The huge array
of quality
Aluminium is used in variousapplications like transport,
packaging, electricalapplication, medicine, andconstruction of homes and
furniture.
The high altitude flying is notpossible without the hugepressures and stressesinvolved in the strong
aluminium alloys.
Uses of CopperAlloys
Copper alloys have excellentelectrical and thermal performance,
good corrosion resistance, highductility and relatively low cost.
Copper alloy is used in hermeticseals, in automotive heat
exchangers and copper tin alloysare primarily used for sleeve
bearings due to its stronger andmore ductility property.
Copper alloys are less expensivethan gold or platinum that is whylargely utilized in odontological
restorations.
Due to high strength, electrical andthermal conductivity copper alloysare used in the manufacture of all
types of electrical equipment.
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Uses of Nickel
Alloys
Whether in the form ofelement or alloy with other
metals, Nickel materials havemade significant
contributions to present-daysociety.
Nickel alloys have goodcorrosion resistance and heat
resistance.
Nickel alloys are used for awide variety of applications
like aircraft gas turbines,nuclear power systems andwidely used in chemical and
petrochemical industries.
Several nickel alloys are usedin control equipments todetermine and control
electrical characteristics.
Uses ofStainless steel
Alloys
In order to reduce corrosionlosses, there are extensiveuses of stainless steels.
Stainless steel alloys areused for many commercialapplications such as watch
straps, cutlery etc.
Stainless alloys used for
making tubes intended forplacement on the bottom of
the sea. Many stainless steelalloys has improved
weldability and corrosionresistance.
Stainless Alloys are alsowidely used in the electronic,
agricultural, road and railindustries.
Stainless steel grades areused for handling bulk wet
materials, tanks, containers,conveyors, chimneys and
many others.
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Uses of TitaniumAlloys
Titanium alloys have highmelting point than stainless
steels.
Due to high strength,toughness and stiffness,many titanium alloys are
used in aerospace structuresand other high-performance
applications. T
itanium alloys are used fordifferent spacecraft parts, jetengines and airframe to saveweight and improve aircraft
efficiency.
It corrosion resistance allowits uses in chemical,petrochemical and
biomaterial applications.
Uses ofDuralumin
Duralumin is use to make thebody of aeroplanes and
racing bicycles
This material is choose as itis strong enough to withstand
with high pressure.
Beside that, duralumin arelight and more importantly it
can withstand with corrosion.
So, it will make aeroplaneand other kind of product thatmade by using alloy safer to
be used
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The Aimsof
Alloying
To increasethe strength
and hardnessof a metal sothat the metal
would notbroken easily
To prevent thecorrosion of ametal if it isbeing used
over period oftime
To improve theappearance ofthe metal so
that it will look
more attractiveand nice looking
To prevent themetal from
rusting
To extend thelifetime of a
metal
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ALLOY PRODUCT
Alloy
Pipe
Alloy
CastingDie
Alloy
Wheel
AlloyCross
Earring
AlloyCrank
AlloyBall