GCr15钢碳氮共渗与马氏体淬火组织及性能试验对比研究  

Comparative study on microstructure and properties of GCr15 steel after carbonitriding and martensite quenching

作　　者：单琼飞 王鑫[1,2] 薛文方 祝道明 叶健熠 Shan Qiongfei;Wang Xin;Xue Wenfang;Zhu Daoming;Ye Jianyi(Luoyang Bearing Research Institute Co.,Ltd.,Luoyang 471039,China;Strategic Alliance for Technology Innovation in Rolling Bearing Industry,Luoyang 471039,China)

机构地区：[1]洛阳轴承研究所有限公司,河南洛阳471039 [2]滚动轴承产业技术创新战略联盟,河南洛阳471039

出　　处：《哈尔滨轴承》2021年第2期28-31,共4页Journal of Harbin Bearing

摘　　要：对碳氮共渗及常规马氏体淬回火的轴承零件及寿命试样进行了组织、硬度、晶粒度、变形量、回火稳定性及接触疲劳寿命试验的对比检测分析,结果表明:晶粒度及变形量控制两者基本一致,但碳氮共渗的表层硬度、回火稳定性及疲劳寿命均明显优于马氏体淬火。The microstructure,hardness,grain size,deformation,tempering stability and contact fatigue life of bearing parts and life samples after carbonitriding and conventional martensite quenching were tested and analyzed.The results show that the grain size and deformation control are basically the same,but the surface hardness,tempering stability and contact fatigue life of carbonitriding are obviously better than that of martensite quenching.

关 键 词：碳氮共渗 晶粒度 变形量 回火稳定性 接触疲劳寿命 

分 类 号：TG162.71[金属学及工艺—热处理]