Oxide nodule assisting fatigue crack initiation in hierarchical anisotropic nanostructured Mg-RE alloy
文献类型：期刊论文
| 作者 | Chen, Yao3,4; Shuai, Qi4; Wu, Yujuan5; Peng, Liming5; Shao, Xiaohong1; Liu, Fulin4; He, Chao4; Li, Lang4; Liu, Yongjie4; Wang, Qingyuan2,4 |
| 刊名 | INTERNATIONAL JOURNAL OF FATIGUE
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 175页码:14 |
| 关键词 | Magnesium alloy Gigacycle fatigue Fatigue crack initiation Fatigue damage Scattered oxide nodules |
| ISSN号 | 0142-1123 |
| DOI | 10.1016/j.ijfatigue.2023.107820 |
| 通讯作者 | He, Chao(hechao@scu.edu.cn) ; Wang, Qingyuan(wangqy@scu.edu.cn) |
| 英文摘要 | Hierarchical anisotropic nanostructured Mg-RE alloys, containing LPSO lamellae and dense nano-precipitates, exhibit superior mechanical properties. However, their reliability as structural materials for long-term service, especially in terms of fatigue, is still a matter of concern. Here, scattered oxide nodules are detected as a special kind of fatigue damage that assists crack initiation, rather than the typical slip-band structure. The LPSO lamellae and dense & beta;& PRIME; nano-precipitates lead to the high localization of fatigue damage. The fatigue-induced oxide nodules form and grow within the soft & alpha;-Mg layer, but their growth is limited by the adjacent strong LPSO lamellae, resulting in microcrack nucleation. Finally, clusters of microcracks along the LPSO/oxide interface converge to form the trans-granular crack initiation. |
| 资助项目 | National Natural Science Foundation of China[12102280] ; National Natural Science Foundation of China[12172238] ; National Natural Science Foundation of China[12002226] ; Natural Science Foundation of Sichuan Province[2022NSFSC0337] ; JSPS KAKENHI[JP22K03828] ; Ultramicroscopy Research Center (URC) ; JSPS Fellowship[JP22F22720] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001048672300001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Sichuan Province ; JSPS KAKENHI ; Ultramicroscopy Research Center (URC) ; JSPS Fellowship |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178927]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | He, Chao; Wang, Qingyuan |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Chengdu Univ, Inst Adv Study, Chengdu 610106, Peoples R China 3.Kyushu Univ, Dept Mech Engn, Fukuoka 8190395, Japan 4.Sichuan Univ, Failure Mech & Engn Disaster Prevent Key Lab Sichu, Chengdu 610065, Peoples R China 5.Shanghai Jiao Tong Univ, Natl Engn Res Ctr Light Alloy Net Forming, Key State Lab Met Matrix Composites, Shanghai 200240, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Yao,Shuai, Qi,Wu, Yujuan,et al. Oxide nodule assisting fatigue crack initiation in hierarchical anisotropic nanostructured Mg-RE alloy[J]. INTERNATIONAL JOURNAL OF FATIGUE,2023,175:14. |
| APA | Chen, Yao.,Shuai, Qi.,Wu, Yujuan.,Peng, Liming.,Shao, Xiaohong.,...&Chen, Qiang.(2023).Oxide nodule assisting fatigue crack initiation in hierarchical anisotropic nanostructured Mg-RE alloy.INTERNATIONAL JOURNAL OF FATIGUE,175,14. |
| MLA | Chen, Yao,et al."Oxide nodule assisting fatigue crack initiation in hierarchical anisotropic nanostructured Mg-RE alloy".INTERNATIONAL JOURNAL OF FATIGUE 175(2023):14. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。