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What are the physical processes that take place during the tensile deformation of a ductile metal?...

What are the physical processes that take place during the tensile deformation of a ductile metal? How might those processes change depending on the size of the grains?

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Answer #1

During tensile deformation, There are three process i.e. starin hardening, Necking, rapture also called as fracture.

According to hall patch equation grain size is inversely prpopotional to yield strength. Higher the grain size lower will be the necking region and fracture point.

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