本文对40Mn2B钢的离子软氮化及离子渗硫软氮化工艺及耐磨性作了初步研究,并与离子氮化作了对比,同时也与45、40Cr常用调质钢作了对比。通过金相检验、硫印、显微硬度测定、X—射线衍射相结构分析,结合耐磨、扭转、拉伸试验,初步掌握了40Mn2B钢的离子轰击热处理特点,为生产选定工艺提供一些参考数据。 In this paper, 40Mn2B steel ion nitrocarburizing and ion-infiltration sulfur nitrocarburizing process and wear resistance were studied and compared with ion nitriding, but also with 45,40 Cr common quenched and tempered steel for comparison. Through the metallographic examination, sulfur seal, microhardness test and X-ray diffraction phase structure analysis, combined with the wear resistance, torsion and tensile test, the heat treatment characteristics of 40Mn2B steel were first mastered, providing some reference for the production process data.