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Grade 11General Physics

what is meant by strain hardening ?

Profile image of putus
12 Years agoGrade 11
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1 Answer

Profile image of Saurabh Koranglekar
5 Years ago
Strain Hardening is when a metal is strained beyond the yield point. An increasing stress is required to produce additional plastic deformation and the metal apparently becomes stronger and more difficult to deform.

Strain hardening is closely related to fatigue. Example, bending the thin steel rod becomes more difficult the farther the rod is bent. This is the result of work or strain hardening. Strain hardening reduces ductility, which increases the chances of brittle failure.