稀土时离子硫氮碳共渗的影响  

Effect of Rare Earth on Ion Sulph Nitrocarburizing

作　　者：王庆祝[1] 李正川[1] 宋绪丁[1] 王利捷 

机构地区：[1]西安公路学院

出　　处：《热加工工艺》1995年第2期36-38,共3页Hot Working Technology

摘　　要：研究了稀土浓度、保温时间对渗层深度和性能的影响，探讨了稀土元素对离子硫氮碳共修的催渗机理。试验结果表明，在渗剂中加入一定量的稀土对离子硫氮碳共渗具有明显的催渗作用，可使渗层深度提高约２５％，硫化物层牢固，表面硬度增高且渗层硬度梯度平缓，耐磨性提高５０％以上。The influence of rare earth concentration and holding time on the depth and mechanical properties of ion sulph-nitrocarburizing layer was studied. The catalyizing mechanism of rare earth sulph nitrocarburizing was discussed. The results showed that addition of rare earth elements catalyize the ion sulph-nitrocarburizing process envidently, increase the depth of sulph-nitrocarburizing layer atout 25%,form tle firm sulphide and enhance surface hardness and smoothly gradient,wear resistance that layer has increased over 50%.

关 键 词：硫氮碳共渗 催渗 稀土族 离子渗 

分 类 号：TG156.8[金属学及工艺—热处理]