在通氨滴醇气体软氮化的基础上加入不同量的稀土化合物CeCl_2,研究了它对动力学过程、渗层组织结构,硬度及耐磨性的影响.结果表明:与常规软氮化过程相比,CeCl_2可使渗速提高20～30％,渗层的N、C含量增高,且向内层延伸分布,使表面硬度和耐磨性大大挺高;稀土元素Ce亦被渗入钢的表面,不仅起到催化活化渗入介质的作用,同时还可能起到微合金化的作用。 On the basis of nitrocarburizing with ammonia drop gas, different amount of rare earth compound CeCl 2 was added to study its effect on dynamic process, structure of infiltrated layer, hardness and wear resistance.The results show that compared with conventional nitrocarburizing process Compared with CeCl 2, the infiltration rate can be increased by 20-30% and the N and C contents in the infiltrated layer increase and extend to the inner layer, resulting in a much higher surface hardness and wear resistance. The rare earth element Ce is also infiltrated into the surface of the steel , Not only play the role of catalytic activation into the medium, but also may play a role in micro-alloying.