Enhanced bending fatigue resistance of a 50CrMnMoVNb spring steel with decarburized layer by surface spinning strengthening

doi:10.1016/j.ijfatigue.2019.03.014

CORC > 金属研究所 > 中国科学院金属研究所

	Enhanced bending fatigue resistance of a 50CrMnMoVNb spring steel with decarburized layer by surface spinning strengthening
	Ren, C. X.1,2; Wang, D. Q. Q.1; Wang, Q.1; Guo, Y. S.3; Zhang, Z. J.1; Shao, C. W.1; Yang, H. J.1; Zhang, Z. F.1,2
刊名	INTERNATIONAL JOURNAL OF FATIGUE
	2019-07-01
卷号	124 页码:277-287
关键词	Spring steel Three-point bending fatigue Surface decarburization Surface spinning strengthening (3S) Fatigue life
ISSN号	0142-1123
DOI	10.1016/j.ijfatigue.2019.03.014
通讯作者	Wang, Q.(gmwang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
英文摘要	Surface decarburization directly influences the service performance of spring steel, which is an important scientific issue. The bending fatigue behavior of 50CrMnMoVNb spring steel with surface decarburization as well as treated by surface spinning strengthening (3S) was systematically investigated in this study. The results show that the decarburized layer was significantly modified by turning into a strengthened layer with gradient microstructure after 3S treatment, and the bending fatigue life of spring steel was effectively extended. Furthermore, a fatigue risk model and the Basquin equation were used to predict the crack initiation site and evaluate the fatigue life respectively. Moreover, the 3S treatment can significantly decrease the fatigue risk of the spring steel surface, which makes the fatigue crack initiation site migrate into the subsurface layer and extend the bending fatigue life. Accordingly, some recommended principles were proposed finally to enhance the fatigue resistance of the surface decarburized spring steel, including surface strengthening, removing decarburized layer, decreasing the size and quantity of inclusion, and homogenizing microstructure.
资助项目	National Natural Science Foundation of China (NSFC)[U1664253] ; National Natural Science Foundation of China (NSFC)[51331007] ; National Natural Science Foundation of China (NSFC)[51801216] ; Innovation Fund for Graduate students of IMR.CAS
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000470940100026
资助机构	National Natural Science Foundation of China (NSFC) ; Innovation Fund for Graduate students of IMR.CAS
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/134117]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang, Q.; Zhang, Z. F.
作者单位	1.Chinese Acad Sci, Inst Met Res, Mat Fatigue & Fracture Div, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Fawer Liaoning Automobile Spring Co Ltd, Liaoyang 111000, Peoples R China
推荐引用方式 GB/T 7714	Ren, C. X.,Wang, D. Q. Q.,Wang, Q.,et al. Enhanced bending fatigue resistance of a 50CrMnMoVNb spring steel with decarburized layer by surface spinning strengthening[J]. INTERNATIONAL JOURNAL OF FATIGUE,2019,124:277-287.
APA	Ren, C. X..,Wang, D. Q. Q..,Wang, Q..,Guo, Y. S..,Zhang, Z. J..,...&Zhang, Z. F..(2019).Enhanced bending fatigue resistance of a 50CrMnMoVNb spring steel with decarburized layer by surface spinning strengthening.INTERNATIONAL JOURNAL OF FATIGUE,124,277-287.
MLA	Ren, C. X.,et al."Enhanced bending fatigue resistance of a 50CrMnMoVNb spring steel with decarburized layer by surface spinning strengthening".INTERNATIONAL JOURNAL OF FATIGUE 124(2019):277-287.