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本文利用扫描电镜、透射电镜及X射线衍射仪，研究了加弧辉光离子渗金属技术在碳钢（10，45，T8）表面形成的Ni－Cr共渗层的合金元素（Cr，Ni，C）分布及其显微组织，结果表明，在本文的实验条件下，渗层表面合金元素浓度（质量分数，％）为Ni50－60，Cr10－15，渗层内合金元素含量由表面向内逐渐降低；由于试样碳含量的不同，形成的Ni－Cr渗层内碳元素的分布具有不同的特点；Ni－Cr共渗层均以γ－（Fe，Ni）相为基，在45，T8钢试样中，同时存在碳化物Cr23C6和Cr7C3。
In this paper, by using scanning electron microscopy, transmission electron microscopy and X-ray diffractometry, the alloy elements (Cr, Ni, Cr) of Ni-Cr diffusion layer formed on the surface of carbon steel (10,45, T8) C) distribution and its microstructure, the results show that the experimental conditions in this article, the surface alloying element concentration (mass fraction,%) Ni50-60, Cr10-15, the alloy layer within the infiltration layer from the surface inward Gradually decreased. Due to the different carbon content of samples, the distribution of carbon in Ni-Cr interlayers was different. The Ni-Cr co-permeation layers were all based on γ- (Fe, Ni) T8 steel samples, there are carbide Cr23C6 and Cr7C3.