摘要
对１Ｃｒ１８Ｎｉ９Ｔｉ不锈钢的Ｎ＾＋注入态，Ｎ－Ｃ－Ｏ共渗入Ｎ－Ｃ－Ｏ共渗＋注入复合态的表面改性进行了研究。结果表明：复合态由于同时具有一定厚度的改性层与非晶态表面，而达到了耐磨性及抗蚀性的最佳统一。Ｘ射线低角度掠射技术及超显微硬度计ＵＭＨＴ－３被用于Ｎ＾＋注入层的组织结构分析与硬度表征，并采用俄歇能谱仪测量离子注入层的氮浓度分布，同时还讨论Ｎ＾＋注入对提高Ｎ－Ｃ－Ｏ共渗态抗蚀性能的贡献及其机理。
The studies were made about the surface modification of a 1Cr18Ni9Tistainless steel which were N￣+ implanted, nitrocarburized and nitrocarburized +post N￣+implanted.From the results obtained,it showed that the combind modified surface withcertain thickness of modified layer and amophotis structtires possesses optimal properties ofcorrelated wear and corrosion resistance .Grazing Incidetice X- ray Diffraction (GLXRD) andUMHT- 3 Ultra-microhardn tester were used separately to characterize the surface structureand hardness of N￣+ implanted layer in 1Cr18 Ni9Ti steel. Meanwhile Auger ElectronSpectroscopy (AES)was ultilized to indicate the nitrogen concentration profile in the N￣+implanted layer.Furthermore .contribution and mechanism of N￣+ implanted in improvingcorrosion resistance were discussed as well.
基金
中科院上海冶金所离子束开放实验室资助课题
关键词
表面复合改性
不锈钢
复合渗
离子注入
N￣+ implanted.N-C-O treatment. combined modification. depth of N￣+implanted layer
