Further Understanding of Formation Mechanisms of Micropits and Microcracks on Precision-Bearing Raceway Surfaces Under Light Load Condition

doi:10.1111/ffe.14512

IMR OpenIR

	Further Understanding of Formation Mechanisms of Micropits and Microcracks on Precision-Bearing Raceway Surfaces Under Light Load Condition
	Zhang, Xiaochen 1,2; Wu, Di 1,3; Hou, Dongcen 4; Wang, Jianqiu 1,2,5; Han, En-Hou 1,2,5
通讯作者	Wu, Di(dwu@imr.ac.cn) ; Wang, Jianqiu(wangjianqiu@imr.ac.cn)
	2024-11-14
发表期刊	FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
ISSN	8756-758X
页码	14
摘要	In this study, precision-bearing samples were tested on bearing test bench under light load condition for different time periods. Surface morphologies of damage bearing samples were characterized from two aspects (2D and 3D) by various methods. Numerous micropits can be observed on surfaces of raceways and steel balls. Combing with surface damage morphologies and thickness of oil films, it can be speculated that main formation mechanism of micropits is that the surface asperities puncture the oil film firstly and then squeezed into surface in contact with it. Potential effect of vibration during the formation process of micropits had been found by repetitive experiments on RCF test machine. Micropits can form more easily under higher vibration values. Surface microcracks can initiate and propagate with the synergistic effects of repeated plastic deformation and oxide-assisted.
关键词	microcrack micropit precision degradation roughness peak surface asperity
资助者	Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
DOI	10.1111/ffe.14512
收录类别	SCI
语种	英语
资助项目	Chinese Academy of Sciences[XDC 04030400] ; Strategic Priority Research Program of the Chinese Academy of Sciences
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:001356938600001
出版者	WILEY
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/191593
专题	中国科学院金属研究所
通讯作者	Wu, Di; Wang, Jianqiu
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China 2.Univ Sci & Technol China, Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Anal & Test Ctr, Shenyang, Peoples R China 5.Inst Corros Sci & Technol, Guangzhou, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiaochen,Wu, Di,Hou, Dongcen,et al. Further Understanding of Formation Mechanisms of Micropits and Microcracks on Precision-Bearing Raceway Surfaces Under Light Load Condition[J]. FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,2024:14.
APA	Zhang, Xiaochen,Wu, Di,Hou, Dongcen,Wang, Jianqiu,&Han, En-Hou.(2024).Further Understanding of Formation Mechanisms of Micropits and Microcracks on Precision-Bearing Raceway Surfaces Under Light Load Condition.FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,14.
MLA	Zhang, Xiaochen,et al."Further Understanding of Formation Mechanisms of Micropits and Microcracks on Precision-Bearing Raceway Surfaces Under Light Load Condition".FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES (2024):14.