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本文用俄歇能谱仪(AES),结合高精度表面轮廓仪测定奥氏体不锈钢氮离子注入层深度及氮浓度分布.用超显微硬度计(试验载荷为0.1g至2.0g)测量注入层的本征硬度,还用x射线低角度掠射技术(GIXRT)分析注入层的组织结构.研究结果表明:氮离子注入层为过饱和氮的单相国溶体非晶态层,它强化了奥氏体不锈钢表层,提高耐磨性,降低摩擦系数.注入态的耐蚀性优于非注入态.
In this paper, the depth and nitrogen concentration distribution of nitrogen ion implanted layer in austenitic stainless steel were measured by Auger spectrometer (AES) combined with high-precision surface profilometer. The intrinsic hardness of the implanted layer was measured with an ultra-microhardness tester (test load of 0.1 g to 2.0 g) and the texture of the implanted layer was also analyzed by x-ray low-angle grazing technique (GIXRT). The results show that the nitrogen ion implanted layer is a single-phase, non-crystalline, non-crystalline layer of supersaturated nitrogen, which enhances the surface of the austenitic stainless steel to improve the wear resistance and reduce the friction coefficient. The corrosion resistance of the implanted state is better than that of the non-implanted state.