Property Changes by Deformation

Due to the cold working of metals, there arise a large number of dislocation and distortions of planes. Cold working of metals or alloys increases the hardness, yield strength, ultimate strength and electrical resistance whereas the ductility and plasticity are decreased. Following are some important changes in properties in metals due to plastic deformation. Work (Strain) Hardening Strain hardening or work hardening is the phenomenon whereby a ductile metal becomes harder and stronger as it is plastically deformed. The temperature, at which deformation takes place is cold, relative to the…

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