由回火温度与硬度变化曲线证实，残余应力重新分布是与残余奥氏体转变相关联。
According to the tempering temperature and hardness curve, the redistribution of residual stress is associated with the transformation of residual austenite.
回火作业包括将淬硬钢重新加热到低于临界范围的某一温度然后以任意速率冷却。
The operation consists of reheating quench-hardened steel to some temperature below the critical range followed by any rate of cooling.
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