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work hardening
(redirected from Work hardened)

   Also found in: Medical, Wikipedia, Hutchinson 0.04 sec.
work hardening [′wərk ¦härd·ən·iŋ]
(metallurgy)
Increased hardness accompanying plastic deformation of a metal below the recrystallization temperature range.


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When this is done properly, the austenitic grain structure is fixed, the casting becomes tough and is then capable of being work hardened.
However, unlike the ductile metals that are typically work hardened, bulk silicon is brittle, so it would shatter if subjected to those operations.
Therefore, the surface will have been work hardened to a depth of approximately 5 microns.
 
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