稀土在35CrMoRE钢离子渗氮中的催渗作用  

The Energized Action of Rare Earth Elements on Plasma Nitriding of 35CrMoRE Steel

作　　者：郭滨刚[1] 景国荣[1] 谢学智[1] 谢飞[1] 张建林 

机构地区：[1]机械工业部洛阳轴承研究所,西安交通大学

出　　处：《金属热处理》1996年第11期12-15,共4页Heat Treatment of Metals

摘　　要：对３５ＣｒＭｏ、３５ＣｒＭｏＲＥ钢进行离子渗氮，发现稀土钢渗氮层硬度提高，层深加厚，稀土元素具有明显的催渗作用，应用稀土钢可以较好地达到深层、快速离子渗氮的目的。本文还探讨了稀土元素对离子渗氮过程的催渗作用，提出了气团─通道模型。CrMo and 35CrMoRE steels were plasma nitrided. The nitrided case depth of the 35CrMoRE was deeper than that of the 35CrMo. The rare earth elements significantly enhanced the plasma niteiding rate. The possible mechanism of the energized function of rare earth elements in the plasma nitriding process was discussed, an'atmosphere-channel'model was given.

关 键 词：稀土 钢 离子渗氮 热处理 催渗 35CrMoRE钢 

分 类 号：TG161.82[金属学及工艺—热处理]