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VTU-SYLLABUS-2010-STRENGTH-OF-MATERIALS-COMMON-TO-CVTREVCTM-10CV33-Engineering-->View question


Asked On2017-06-12 04:32:57 by:prajwalamv

Taged users:
tarun101

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Properties of Engineering Materials

  PHYSICAL PROPERTIES
   Specific Gravity-defined as the weight of a given volume of a material as compared to the wt of an given volume of water it is measured at atemperature of 60 deg F(15.5 deg C)
   Specific Heat-heat required to raise the temperature of unit wt of material by one degree.
   Fusibility & Fluidity-the property of a material where it tends to melt and flows when heat is applied.
   Weldability-ability of uniting two pieces of metal by applying pressure or heat or both.
   Elasticity-property due to which a metal regains its original dimension on removal of load.
   Plasticity-beyon elastic limit the material is unable to regain its original shape and retains to its moulded shape.this property is called plasticity.
   Porosity-materials in their plastic or molten state contain some dissolved gasses which are evaporated once they are setformin gas holes and pores.this property is know as     porosity.  


 MECHANICAL PROPERTIES

Strength-ability of a material to reisit the application of load without rupture.
Hardness-ability of a material to resist penetration or scratching.
Hardenability-ability of a material to be hardened by heat treat ment.
Toughness-property of a material where it can absorb energy before actual fracture.
Brittleness-ability oa material to fracture on recieving  shock or blow
Malleability-ability oa material to be hammered into thin sheets.
Ductility-ability of a material to be drawn into wires.
Creep & Slip-ability of a material to flow like a viscous liqwuid under the application of stress nd temperature is called creep.the phenomenon where deformation stops even if the load is acting.
Fatigue-
Resilience-property of a material to absorb energy within elastic range.this required for springing action.

THERMAL PROPERTIES

Conductivity-ability of a material to conduct heat from a hot end to cold end. silver and copper are good conductors of heat.

ELECTRICAL PROPERTIES-

Conductivity-ability of a material to conduct electricity from one end to another.

MAGNETIC PROPERTIES 

Ability of material to act as a magnet and attract materials like iron,steel,nickel etc..

Answerd on:2017-06-27 Answerd By:Amogh

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