钢的热处理工序包括硬化、回火、退火和表面硬化。
The procedures of heat treatment of steel include hardening tempering annealing and case hardening.
通过高温抗氧化、盐雾腐蚀和应力腐蚀试验研究了07X16H6沉淀硬化不锈钢在使用状态（回火态）时的耐蚀性能。
The corrosion resistance of 07X16H6 precipitation hardening stainless steel in tempered state was studied using high temperature oxidation, salt-spray test and stress corrosion test.
由于需要对凹槽进行硬化，所以需要指定塑性材料和回火。
Due to work hardening in the groove area, ductile materials and tempers should be specified.
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