采用不同温度对Crl2MoV钢进行电弧等离子体辅助渗氮处理.采用X射线衍射(XRD)分析渗氮层的相组成,采用扫描电子显微镜(SEM)及光学显微镜分别观察渗氮样品表面形貌及横截面形貌,利用显微硬度计测试渗氮层的硬度分布.结果表明:实验钢渗氮层的结构由CrN+γ'-Fe4N+ε-Fe3N的化合物层及由含氮马氏体相α-Fe (N)组成,渗氮层的厚度随处理温度的升高而增加.渗氮处理后能明显提高Cr12MoV钢基体的显微硬度.
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