Abstract

The effect of the structural state formed during laser melting deposition (LMD) on the nitriding of 25Kh13N2 martensitic steel in a glow discharge is investigated. The nitriding of the steel synthesized by LMD is shown to result in a diffusion layer which is twice as thick as that in the steel after martempering. The diffusion layer of the steel synthesized by LMD followed by high-temperature tempering is 1.75 times thicker than that of the steel after martempering. The microhardness distribution across the diffusion layer is flattened in the case of LMD or LMD followed by high-temperature tempering.

中文翻译：

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激光熔融沉积过程中形成的结构状态对25Kh13N2马氏体钢渗氮层参数的影响

摘要

研究了激光熔化沉积（LMD）期间形成的结构状态对辉光放电中25Kh13N2马氏体钢氮化的影响。显示出通过LMD合成的钢的氮化导致扩散层的厚度是淬火后钢中的两倍。通过LMD合成并随后进行高温回火的钢的扩散层的厚度是回火后钢的扩散层的厚度的1.75倍。在LMD或LMD的情况下，随后进行高温回火，可以使扩散层上的显微硬度分布平坦。