稀土在离子氮碳共渗中的作用及对耐磨性的影响  

An Action of Rare Earth on lon-nitrocarburizing and the Effect Rare Earth on the Wear Resistance of Nitrocarburized Layer

作　　者：王利捷[1] 张翔[1] 宋绪丁[1] 

机构地区：[1]西安公路交通大学

出　　处：《表面技术》1996年第2期15-18,共4页Surface Technology

摘　　要：采用光学显微镜、显微硬度计、磨损对比试验等方法,研究了稀土加入量对渗层厚度、硬度及耐磨性的影响,探讨了稀土催渗机理。研究表明:稀土对离子氮碳共渗有明显的加速作用,且存在一最佳值;共渗层耐磨性提高。By using optical microscoapy, microhardness tester and wear tester. The influence of adding amount of rare earth(Rc) on the depth of nitrocarburized layer,hardness and wear resistance was studied. Meantime,the catalyiz-ing mechanism of Rc was analysed. The results showed that Rc elements have a obvious catalyizing action on nitro-carburizing. Moreover the adding amount of rare earth has a optimum value. The Wear resistance of Rc-nitrocarbur-ized layer has been improved.

关 键 词：稀土 离子氮碳共渗 耐磨性 共渗层 

分 类 号：TG174.445[金属学及工艺—金属表面处理]