20CrMnTi齿轮钢的稀土渗碳  

Rare Earth Carburizing of 20CrMnTi Gear Steel

作　　者：赵勇[1] 张伟[1] 

机构地区：[1]乐山职业技术学院,四川乐山614000

出　　处：《铸造技术》2014年第8期1712-1714,共3页Foundry Technology

摘　　要：以20CrMnTi齿轮钢为对象,研究了不同稀土添加量、渗碳时间和渗碳温度对渗碳速度和显微组织的影响。结果表明,20CrMnTi齿轮钢中最佳稀土添加量为5%～8%。添加6%稀土后,渗碳层深度随渗碳时间的延长而逐渐升高。The effect of rare earth amount, carburize times and carburize temperature on the carburize speed and microstructure were studied. The results show that the optimum content of rare earth in the 20CrMnTi gear steel is 5%-8%, and the carburized layer depth increase with the carburize times when the content of rare earth is 6%.

关 键 词：齿轮 稀土 渗碳 

分 类 号：TG156.81[金属学及工艺—热处理]