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首页> 外文期刊>Journal of Materials Engineering and Performance >Effect of Heat Treatment on the Microstructure and Hardness of 17Cr-0.17N-0.43C-1.7 Mo Martensitic Stainless Steel
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Effect of Heat Treatment on the Microstructure and Hardness of 17Cr-0.17N-0.43C-1.7 Mo Martensitic Stainless Steel

机译：热处理对17Cr-0.17N-0.43C-1.7 Mo马氏体不锈钢显微组织和硬度的影响

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摘要

The microstructure and hardness of a nitrogen-containing martensitic stainless steel were investigated as a function of heat treatment using optical microscopy, electron microscopy, amount of retained austenite, and hardness measurement. The steel was subjected to three heat treatments: hardening, cryo treatment, and tempering. The hardness of the steel in different heat-treated conditions ranged within 446-620 HV. The constituents of microstructure in hardened condition were lath martensite, retained austenite, M23C6, M7C3, MC carbides, and M(C,N) carbonitrides. Upon tempering at 500 A degrees C, two new phases have precipitated: fine spherical Mo2C carbides and needle-shaped Cr2N particles.
机译：使用光学显微镜，电子显微镜，残余奥氏体量和硬度测量，研究了含氮马氏体不锈钢的显微组织和硬度与热处理的关系。对钢进行了三种热处理：淬火，低温处理和回火。在不同的热处理条件下，钢的硬度范围为446-620 HV。硬化条件下的显微组织成分是板条马氏体，残余奥氏体，M23C6，M7C3，MC碳化物和M（C，N）碳氮化物。在500 A的温度下回火后，出现了两个新的相：细小的球形Mo2C碳化物和针状Cr2N颗粒。

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