奥氏体不锈钢耐蚀渗氮工艺的研究  

Corrosion-resisting Nitriding of Austenitic Stainless Steel

作　　者：林峰[1] 梁东[2] 邢海生[1] 陈战 

机构地区：[1]武汉材料保护研究所,湖北武汉430030 [2]江汉大学商学院,湖北武汉430056 [3]武汉首发表面工程有限公司,湖北武汉430060

出　　处：《热处理》2010年第2期27-30,共4页Heat Treatment

基　　金：武汉市人事局2007年度武汉市创新人才开发基金资助

摘　　要：对AISI 321和AISI 304不锈钢进行了低温离子渗氮,其表面获得了均匀的渗氮层即白亮层。与未经渗氮的钢相比,经离子渗氮的钢表面硬度和耐磨性显著提高,而耐蚀性也并不降低;与经传统的盐浴氮碳共渗的钢相比,经离子渗氮的钢的耐磨性和耐蚀性也均有所提高。对经低温离子渗氮的AISI 321纲渗层进行了XRD分析,发现试样的谱峰明显向低角度偏移。AISI 321 and AISI 304 stainless steels were plasma nitrided at low temperature, and uniform nitrided cases, namely ,white layers ,were developed on their surfaces. The two steels subjected to low temperature plasma nitriding were superior to that without being nitrided in the surface hardness and wearability and meanwhile retained the same corrosion resistance, and also superior to that subjected to conventional liquid nitroearburizing in the wearability and corrosion resistance. The low temperature plasma nitrided case of 321 stainless steel was analyzed by XRD, and the analysis found that the diffraction peak had evidently moved in low-angle region.

关 键 词：不锈钢 耐蚀性 离子渗氮 

分 类 号：TG156.82[金属学及工艺—热处理]