唐英,雷贻文,孙荣禄,王云山

• 1:天津工业大学机电学院

摘要(Abstract)：

研究了Fe-Cr-Ni-C-Si-Mo系合金的激光熔覆层经700～850℃高温处理后其微观组织的变化。采用SEM、EDS、XRD、光学显微镜、Thermo-calc热力学软件等对熔覆层的组织进行了分析。结果表明,该合金熔覆态涂层的组织主要为γ(Fe,Ni,Cr)和(Cr、Fe)7C3合金碳化物。当熔覆层的处理温度低于750℃时,其显微组织没有明显变化。经850℃的处理后,其微观组织中出现了新相(Cr、Fe)23C6,且生成的(Cr、Fe)23C6不易长大,并对其转变过程进行了研究。

关键词(KeyWords)： 铁基合金;激光熔覆;高温处理;微观组织

Abstract:

Keywords:

基金项目(Foundation): 天津市科技计划项目资助课题(08JCYBJC09200)

作者(Author): 唐英,雷贻文,孙荣禄,王云山

DOI: 10.13289/j.issn.1009-6264.2010.06.009

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