滚动轴承钢中残余奥氏体量的测定  

Content Determination of Retained Austenite in Rolling Bearing Steel

作　　者：孙健[1] 杨惠[2] 赵兴新 寿培根 薛雯雯 

机构地区：[1]重庆机电职业技术学院,重庆400050 [2]重庆理工大学材料科学与工程学院,重庆400050 [3]重庆长江轴承股份有限公司,重庆400039 [4]重庆新材料工程中心,重庆400039

出　　处：《精密成形工程》2011年第1期6-9,共4页Journal of Netshape Forming Engineering

基　　金：重庆市经委产学研合作技术创新项目(09-CXY-37)

摘　　要：分别采用磁性法、金相方法和X射线衍射法测量了GCr15轴承钢中的残余奥氏体含量,探讨了残余奥氏体含量对GCr15轴承钢使用寿命的影响。结果表明,磁性法测量GCr15轴承钢中残余奥氏体量快捷、准确,易于实现产品生产中的在线快速检测,轴承钢中残余奥氏体对轴承运行过程中疲劳寿命的影响,必须结合应力形态、分布、运行状态及诱发马氏体转变性能等方向进行综合研究来评价。The retained austenite content in bearing steel GCrl5 was determined by magnetism method, metallographic a nalysis and X-ray diffraction measurement, its effects on the service life of bearing steel GCrl5 were also discussed. The results show that magnetism method facilitates the determination of the retained austenite content in hearing steel GCrl5 by speediness and accuracy, the effects of the retained austenite content in bearing steel on the fatigue life of the working bearing should be evaluated by comprehensive investigations combining stress form, distribution, running state and the induced martensite transformation characteristics.

关 键 词：轴承钢 残余奥氏体 阻尼性能 

分 类 号：TG115[金属学及工艺—物理冶金]