通过多种表面测试手段对氮离子注入 GCr15钢的摩擦磨损性能进行了研究结果表明，由于离子注入引起注入层显微硬度提高，表面残余压应力增大，表面粗糙度降低，以及注入层形成了大量细小弥散分布的硬质析出相ε－ Fe2－ 3N，使摩擦磨损机理发生了变化，从而改善了材料的摩擦学性能在本实验条件下，所得最佳参数为注入剂量 4× 1017 ions/cm2，注入能量 100 keV The tribological properties of GCr15 steel infiltrated by nitrogen ions have been investigated by various surface tests. The results show that due to the microhardness of the implanted layer due to ion implantation, the surface residual compressive stress increases, the surface roughness decreases and the formation of the implanted layer A large number of fine precipitates dispersed in hard phase ε- Fe2- 3N, the friction and wear mechanism has changed, thereby improving the tribological properties of the material  In this experimental conditions, the best parameters for the injection dose of 4 × 1017 ions / cm2, energy injection 100 keV 