| 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 | |
| Corresponding Author | Wang, Q.(gmwang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn) |
| 2019-07-01 | |
| Source Publication | INTERNATIONAL JOURNAL OF FATIGUE
 |
| ISSN | 0142-1123 |
| Volume | 124Pages:277-287 |
| Abstract | 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. |
| Keyword | Spring steel Three-point bending fatigue Surface decarburization Surface spinning strengthening (3S) Fatigue life |
| Funding Organization | National Natural Science Foundation of China (NSFC) ; Innovation Fund for Graduate students of IMR.CAS |
| DOI | 10.1016/j.ijfatigue.2019.03.014 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Mechanical ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000470940100026 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/134119 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Q.; Zhang, Z. F. |
| Affiliation | 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 |
| Recommended Citation 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. |
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