【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。更多还原

【Abstract】 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.更多还原