退火
加热至相变区间以上并保温,然后缓慢冷却——通常在炉内进行——以软化钢材、消除内应力、改善切削性或成形性。
参考对照
来源:Trade consensus and standard metallurgical terminology; pgisteel.com describes two unnamed annealing tiers ('Sub-Critical Annealing', 'Full Annealing') by soak temperature without a single 'annealing' menu line to cite as the named service.







