理化检验-物理分册2017，Vol.53Issue(7)：477-481,5.DOI:10.11973/lhjy-wl201707005
不同处理工艺轴承套圈的近表层硬度及残余应力
Hardness and Residual Stress of Near Surface of Bearing Ringswith Different Treatment Processes
罗燕 1刘义翔 2班君 1刘秀莲3
作者信息
- 1. 中国航发哈尔滨轴承有限公司 研发中心, 哈尔滨 150025
- 2. 哈尔滨商业大学 轻工学院, 哈尔滨 150028
- 3. 中国航发哈尔滨轴承有限公司 热表工部, 哈尔滨 150025
- 折叠
摘要
Abstract
The microstructure,hardness and residual stress of M50 steel bearing rings,carburized M50NiL steel bearing rings and M50NiL steel bearing rings after compound chemical heat treatment of carburization and nitridation were tested and analyzed.The hardness tests,stress tests and life durability tests were carried out on M50 steel bearing rings and carburized M50NiL steel bearing rings.The results show that: after compound chemical heat treatment,the hardness of surface and core of M50NiL steel bearing rings was improved compared with that of carburized M50NiL steel bearing rings,and the surface stress especially the subsurface stress was greatly improved,as a result,the abrasion resistance and fatigue properties were also greatly improved;the fatigue resistance and service life of carburized M50NiL steel bearing rings were enhanced by 3 to 5 times compared with those of M50 steel bearing rings.关键词
M50钢/M50NiL钢/轴承套圈/硬度/残余应力/压应力层Key words
M50 steel/M50NiL steel/bearing ring/hardness/residual stress/compressive stress layer分类
机械制造引用本文复制引用
罗燕,刘义翔,班君,刘秀莲..不同处理工艺轴承套圈的近表层硬度及残余应力[J].理化检验-物理分册,2017,53(7):477-481,5.
