Investigation on butterfly white etching area formation mechanism and crack source at different stages in M50 bearing steel

doi:10.1016/j.triboint.2024.109429

IMR OpenIR

	Investigation on butterfly white etching area formation mechanism and crack source at different stages in M50 bearing steel
	Yang, Liqi 1,2; Xue, Weihai 1,2; Cao, Yanfei 1,2; Liu, Hongwei 1,2; Duan, Deli 1,2; Li, Dianzhong 1,2; Li, Shu 1,2
通讯作者	Xue, Weihai(whxue@imr.ac.cn) ; Duan, Deli(duandl@imr.ac.cn)
	2024-05-01
发表期刊	TRIBOLOGY INTERNATIONAL
ISSN	0301-679X
卷号	193 页码:14
摘要	Rolling contact fatigue tests with different stresses and cycles have been conducted to study the formation mechanism and crack source of butterfly white etching area (WEA) in different stages of M50 bearing steel. The results suggest that the structural transformation is prior to cracks. The initial microstructure is the nanocrystalline alpha-Fe formed by dislocation assisted carbon migration. With the extension of cycles, unlike the previous studies, the butterfly-origin carbide is refined into Mo2C and M7C3 nanocrystalline by the accumulated dislocation clusters. Subsequently, the increase of interfacial energy drives the metal elements diffusion and thus the formation of amorphous structures. A new mechanism called diffusion-assisted dislocation has been proposed for butterfly WEA formation.
关键词	M50 bearing steel Rolling contact fatigue Butterfly white etching area Formation mechanism
资助者	Strategic Priority Research Program of the Chinese Academy of Sciences ; Liaoning Key Laboratory of Aero-engine Material Tribology
DOI	10.1016/j.triboint.2024.109429
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04040401] ; Liaoning Key Laboratory of Aero-engine Material Tribology
WOS研究方向	Engineering
WOS类目	Engineering, Mechanical
WOS记录号	WOS:001196846700001
出版者	ELSEVIER SCI LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/185290
专题	中国科学院金属研究所
通讯作者	Xue, Weihai; Duan, Deli
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 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	Yang, Liqi,Xue, Weihai,Cao, Yanfei,et al. Investigation on butterfly white etching area formation mechanism and crack source at different stages in M50 bearing steel[J]. TRIBOLOGY INTERNATIONAL,2024,193:14.
APA	Yang, Liqi.,Xue, Weihai.,Cao, Yanfei.,Liu, Hongwei.,Duan, Deli.,...&Li, Shu.(2024).Investigation on butterfly white etching area formation mechanism and crack source at different stages in M50 bearing steel.TRIBOLOGY INTERNATIONAL,193,14.
MLA	Yang, Liqi,et al."Investigation on butterfly white etching area formation mechanism and crack source at different stages in M50 bearing steel".TRIBOLOGY INTERNATIONAL 193(2024):14.