Engineering Board Exam Reviewer · Engineering Materials · medium
The heat treatment that restores the ductility of a cold-worked metal by forming new strain-free grains is called:
- Recrystallization annealing
- Quenching
- Age hardening
- Case hardening
Answer
A. Recrystallization annealing
Solution
Recrystallization temperature is typically 0.3–0.5 of the absolute melting temperature.
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