Work hardening, also known as strain hardening or cold working, is the strengthening of a metal by plastic deformation.This strengthening occurs because of dislocation movements
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. This is primarily due to the dislocation at molecular level that;s ususally results in interlocking .
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.
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. This is primarily due to the dislocation at molecular level that;s ususally results in interlocking .
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.