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0 简介 高速钢M2的常规淬火(CH)通常是在约1230℃奥氏体化,随后冷却到环境温度。这样处理会产生相当多的残余奥氏体,通过随后的回火操作可降低残余奥氏体量。提高奥氏体化温度和降低冷却速度,将增大残余奥氏体量。
0 Introduction Conventional hardening (CH) of high-speed steel M2 is generally austenitized at about 1230 ° C, followed by cooling to ambient temperature. This treatment produces considerable residual austenite and the amount of retained austenite can be reduced by subsequent tempering operations. Increasing the austenitizing temperature and decreasing the cooling rate will increase the amount of retained austenite.