摘要
介绍了一种含碳量高达1.4%的超高碳轴承钢(UHCBS),并与传统GCr15轴承钢进行了组织及性能对比分析。结果表明:该钢的淬回火组织细小且含有较多的位错亚结构;淬火硬度、回火稳定性及耐磨性均优于GCr15,接触疲劳寿命L_(10)和L_(50)均为GCr15钢的5倍;轴承台架试验寿命为GCr15钢的3~5倍,且试验过程中轴承发热量小,温升低。
An ultra high carbon bearing steel(UHBS)with carbon content up to 1.4%is introduced,and its microstructure and properties are compared with those of traditional GCr15 bearing steel.The results show that:the quenching and tempering microstructure of the steel is fine and contains many dislocation substructures;the quenching hardness,tempering resistance and wear resistance are better than those of GCr15,and the contact fatigue life L_(10) and L_(50) are 5 times of GCr15;the bearing bench test life is 3~5 times of GCr15,and the bearings have small heat generation and low temperature rise during the test.
作者
柳永宁
陈秀明
刘宏基
孙俊杰
LIU Yongning;CHEN Xiuming;LIU Hongji;SUN Junjie(School of Materials and Engineering,Xi’an Jiaotong University,Xi’an 710049,China)
出处
《轴承》
北大核心
2022年第11期40-46,共7页
Bearing
基金
国家自然科学基金资助项目(51271137)。
关键词
滚动轴承
轴承钢
显微组织
硬度
回火稳定性
耐磨性
疲劳寿命
台架试验
rolling bearing
bearing steel
microstructure
hardness
tempering resistance
wear resistance
fatigue life
bench test
