Sliding Friction and Wear Properties of GCr15 Steel under Different Lubrication Conditions

被引:23
作者
He, Tiantian [1 ]
Song, Gaoang [1 ]
Shao, Ruonan [1 ]
Du, Sanming [1 ]
Zhang, Yongzhen [1 ]
机构
[1] Henan Univ Sci & Technol, Natl United Engn Lab Adv Bearing Tribol, Luoyang 471000, Peoples R China
基金
国家重点研发计划; 中国国家自然科学基金;
关键词
friction and wear property; GCr15 bearing steel; lubrication condition; wear mechanism; RESIDUAL-STRESS; THRUST BEARING; MICROSTRUCTURE; BEHAVIOR;
D O I
10.1007/s11665-022-06782-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The tribological performance of GCr15 bearing steel under different lubrication conditions was investigated. The results showed that from lean lubrication to dry friction the tribological properties of GCr15 bearing steel change sharply and the wear mechanism transforms from abrasive wear to the mixture of adhesive wear and oxidation wear. Meanwhile, the thickness of the severe plastic deformation layer increases from lean lubrication to dry friction. The retained austenite transforms into the martensite on the worn surface and the residual compressive stress increases. The variation rate of friction coefficient (f ') and the time of the transition zone (ot) are proposed as the indicators of bearing early failure under unsteady lubrication, which are closely related to service conditions.
引用
收藏
页码:7653 / 7661
页数:9
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