Research on very high cycle fatigue behavior of pure copper
文献类型：期刊论文
| 作者 | Yue, Fengli1; Jia, Yan1; Zhang, Mengxiao2,3; Song, Hongwu2; Zhang, Shihong2; Guo, Wei1; Zhang, Zhefeng2; Pang, Jianchao2 |
| 刊名 | MATERIALS TODAY COMMUNICATIONS
 |
| 出版日期 | 2025-03-01 |
| 卷号 | 44页码:9 |
| 关键词 | Copper Very high cycle fatigue Dislocation structure Fatigue mechanism |
| DOI | 10.1016/j.mtcomm.2025.112109 |
| 通讯作者 | Zhang, Mengxiao(mxzhang@imr.ac.cn) ; Pang, Jianchao(jcpang@imr.ac.cn) |
| 英文摘要 | Very high cycle fatigue performance is an important mechanical performance indicator for copper in service. This paper studies the very high cycle fatigue performance, fracture surface morphology, and dislocation evolution of cold drawn and annealed copper. The results indicate that the dislocation density of cold drawn copper is high, and dislocation configurations are formed during very high cycle fatigue, resulting in fatigue softening and a decrease in fatigue strength. During the annealing process, copper undergoes recrystallization and twinning boundaries, resulting in a decrease in density. Low density of dislocations provide cyclic hardening ability for fatigue processes, increasing tensile strength. The cold drawn fatigue fracture surface is rough, with a short crack propagation zone, while the annealed fatigue crack source zone is clear and the crack propagation zone is flat. In order to gain a deeper understanding of the impact of defects on the fatigue strength of copper, this paper constructs a defect based fatigue strength prediction and correction model. The model parameters are adjusted based on the characteristics of copper, and the results show that the correction model has high accuracy and can accurately predict the fatigue limit of copper. |
| 资助项目 | National Natural Science Foundation of China (NSFC)[52201148] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001441823900001 |
| 出版者 | ELSEVIER |
| 资助机构 | 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 | Zhang, Mengxiao; Pang, Jianchao |
| 作者单位 | 1.Shenyang Ligong Univ, Sch Automot & transportat, Shenyang, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yue, Fengli,Jia, Yan,Zhang, Mengxiao,et al. Research on very high cycle fatigue behavior of pure copper[J]. MATERIALS TODAY COMMUNICATIONS,2025,44:9. |
| APA | Yue, Fengli.,Jia, Yan.,Zhang, Mengxiao.,Song, Hongwu.,Zhang, Shihong.,...&Pang, Jianchao.(2025).Research on very high cycle fatigue behavior of pure copper.MATERIALS TODAY COMMUNICATIONS,44,9. |
| MLA | Yue, Fengli,et al."Research on very high cycle fatigue behavior of pure copper".MATERIALS TODAY COMMUNICATIONS 44(2025):9. |
入库方式： OAI收割
来源：金属研究所
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