The combined effects of carbides and martensite blocks heterogeneity on the fatigue life scatter in bearing steel

doi:10.1016/j.msea.2024.147277

IMR OpenIR

	The combined effects of carbides and martensite blocks heterogeneity on the fatigue life scatter in bearing steel
	Liu, Tengyuan 1,2; Xia, Yifan 1,2; Li, Yonghan 1; Zhao, Zhipo 1; Wang, Pei 1; Li, Dianzhong 1
通讯作者	Wang, Pei(pwang@imr.ac.cn) ; Li, Dianzhong(dzli@imr.ac.cn)
	2024-11-01
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	915 页码:7
摘要	With the mitigation of inclusion-related harm through purifying methods, the fatigue life scatter of bearing steels is now predominantly governed by microstructural heterogeneity. This work employs an integrated experimental-numerical approach to elucidate the microstructure-related localized plastic strain in 52100 bearing steel under cyclic loading. We observed significant localized plastic strain in the coarse grains adjacent to aggregated carbides after unloading, which may act as a precursor to fatigue cracks and contribute to fatigue life scatter. This strain arises from two primary factors: stress concentration due to aggregated carbides and the relatively lower strength of coarse matrix grains, which is usually overlooked. Enhancing the homogeneity of both carbide distribution and matrix grain size will be a strategy to reduce the fatigue life scatter of bearing steels.
关键词	Bearing steel Fatigue life scatter Microstructural heterogeneity Quasi in-situ electron backscattering diffraction (EBSD) Crystal plasticity (CP) Crystal plasticity (CP)
资助者	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences
DOI	10.1016/j.msea.2024.147277
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52031013] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDC 04010300]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001318313700001
出版者	ELSEVIER SCIENCE SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/190007
专题	中国科学院金属研究所
通讯作者	Wang, Pei; Li, Dianzhong
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, Tengyuan,Xia, Yifan,Li, Yonghan,et al. The combined effects of carbides and martensite blocks heterogeneity on the fatigue life scatter in bearing steel[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,915:7.
APA	Liu, Tengyuan,Xia, Yifan,Li, Yonghan,Zhao, Zhipo,Wang, Pei,&Li, Dianzhong.(2024).The combined effects of carbides and martensite blocks heterogeneity on the fatigue life scatter in bearing steel.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,915,7.
MLA	Liu, Tengyuan,et al."The combined effects of carbides and martensite blocks heterogeneity on the fatigue life scatter in bearing steel".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 915(2024):7.