Fatigue crack initiation site transition of high-strength steel under very high-cycle fatigue
文献类型：期刊论文
| 作者 | Teng, Xiaoyuan1,2; Pang, Jianchao1; Gao, Chong1; Li, Shouxin1; Zhang, Zhefeng1 |
| 刊名 | FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
 |
| 出版日期 | 2024-09-08 |
| 页码 | 15 |
| 关键词 | AISI 4340 steel fatigue cracking mechanism fractography stress intensity factor very high-cycle fatigue |
| ISSN号 | 8756-758X |
| DOI | 10.1111/ffe.14437 |
| 通讯作者 | Pang, Jianchao(jcpang@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn) |
| 英文摘要 | The very high-cycle fatigue (VHCF) fractographies of high-strength steel AISI 4340 with tensile strength ranging from 1285 to 2363 MPa fabricated by tempering were systematically observed and quantitatively analyzed. It is found that the fatigue crack initiation sites were gradually transferred from the specimen surface to the interior with increasing the tensile strength or decreasing the stress amplitude. Such phenomenon has become common rule in the high-cycle fatigue (HCF) or VHCF regimes of high-strength steels. Based on the fracture mechanics, a simplified transition mechanism for fatigue crack initiation sites is established in terms of the influence of applied stress amplitude and microstructure, which is beneficial to enhance our understanding on the variation of fatigue strength increasing the tensile strength. The effects of tempering temperature on fatigue crack initiation are studied. The sites of fatigue crack initiation is counted, and influence mechanism is discussed. A model is proposed to explain the relationship between tensile and fatigue strength. |
| 资助项目 | National Key Research and Development Program of China ; National Natural Science Foundation of China (NSFC)[52130002] ; National Natural Science Foundation of China (NSFC)[52321001] ; [2022YFB3708200] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001307023800001 |
| 出版者 | WILEY |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China (NSFC) |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Pang, Jianchao; Zhang, Zhefeng |
| 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, Peoples R China |
| 推荐引用方式 GB/T 7714 | Teng, Xiaoyuan,Pang, Jianchao,Gao, Chong,et al. Fatigue crack initiation site transition of high-strength steel under very high-cycle fatigue[J]. FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,2024:15. |
| APA | Teng, Xiaoyuan,Pang, Jianchao,Gao, Chong,Li, Shouxin,&Zhang, Zhefeng.(2024).Fatigue crack initiation site transition of high-strength steel under very high-cycle fatigue.FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,15. |
| MLA | Teng, Xiaoyuan,et al."Fatigue crack initiation site transition of high-strength steel under very high-cycle fatigue".FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES (2024):15. |
入库方式： OAI收割
来源：金属研究所
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