离子渗氮后的扩散处理对7Cr7Mo2V2Si冷作模具钢性能的影响

于兴福, 西克宇, 张宏伟, 王全振, 郝天赐, 郑冬月, 苏勇

Effect of Post-diffusion Treatment on Microstructure and Properties of Plasma Nitriding 7Cr7Mo2V2Si Cold Work Mold Steel

YU Xingfu, XI Keyu, ZHANG Hongwei, WANG Quanzhen, HAO Tianci, ZHENG Dongyue, SU Yong

图6 不同状态7Mo2V2Si钢在摩擦磨损测试后表面的形貌

Fig.6 Surface morphology of 7Mo2V2Si steel in different states after friction and wear tests (a) unnitride; (b) nitrided; (c) diffusion treated for 10 h; (d) diffusion treated for 20 h; (e) diffusion treated for 30 h