Low-cycle fatigue behaviour of magnesium alloy thick plate joints fabricated via differential double-shoulder friction stir welding
文献类型：期刊论文
| 作者 | Liu, Qiang1; Wang, Wen1,3; Zhang, Ting1; Ma, Qianzhi1; Han, Peng1; Ni, Dingrui2; Qiao, Ke1; Wang, Kuaishe1,3 |
| 刊名 | INTERNATIONAL JOURNAL OF FATIGUE
 |
| 出版日期 | 2024-06-01 |
| 卷号 | 183页码:12 |
| 关键词 | Differential double-shoulder friction stir welding Magnesium alloy thick plate Low-cycle fatigue Deformation behaviour Damage mechanism |
| ISSN号 | 0142-1123 |
| DOI | 10.1016/j.ijfatigue.2024.108264 |
| 通讯作者 | Wang, Wen(wangwen2025@126.com) ; Wang, Kuaishe(wangkuaishe888@126.com) |
| 英文摘要 | Magnesium (Mg) alloy thick plates welded by friction stir welding (FSW) often exhibit poor formability and uneven microstructures, leading to a significant deterioration in the mechanical properties. In this work, AZ31 Mg alloy plates with a thickness of 20 mm were successfully welded by differential double-shoulder friction stir welding (DDS-FSW). The low-cycle fatigue response behaviour was characterised, and the damage mechanism of the joints were studied. The results indicated that the fatigue life of the DDS-FSW joints in both parameters exceeded that of the FSW joint at 0.3 % strain amplitude, with increases of 200 % and 82 %, respectively. The predominant deformation mechanisms are basal slip and {10 1 2} twinning. Basal slip is more likely to be activated in the FSW joint, whereas {10 1 2} twinning is more easily activated in the DDS-FSW joints. Furthermore, the fatigue toughness ( W 0 ) and damage transition exponent ( beta ) could be increased by improving the asymmetric distribution of the stir zone in the joint, the strength of " orientated micro -interface " , and the proportion and distribution uniformity of twins. |
| 资助项目 | National Natural Science Foundation of China[52034005] ; National Natural Science Foundation of China[U1760201] ; Key Research and Develop- ment Program of Shaanxi Province[2017ZDXM-GY-037] ; Natural Science Basic Research Program of Shaanxi Province[2022JQ-459] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001221888700001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; Key Research and Develop- ment Program of Shaanxi Province ; Natural Science Basic Research Program of Shaanxi Province |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Wen; Wang, Kuaishe |
| 作者单位 | 1.Xian Univ Architecture & Technol, Natl & Local Joint Engn Res Ctr Funct Mat Proc, Sch Met Engn, Xian 710055, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Xian Univ Architecture & Technol, 13 Yanta Rd, Xian 710055, Shaanxi Provinc, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Qiang,Wang, Wen,Zhang, Ting,et al. Low-cycle fatigue behaviour of magnesium alloy thick plate joints fabricated via differential double-shoulder friction stir welding[J]. INTERNATIONAL JOURNAL OF FATIGUE,2024,183:12. |
| APA | Liu, Qiang.,Wang, Wen.,Zhang, Ting.,Ma, Qianzhi.,Han, Peng.,...&Wang, Kuaishe.(2024).Low-cycle fatigue behaviour of magnesium alloy thick plate joints fabricated via differential double-shoulder friction stir welding.INTERNATIONAL JOURNAL OF FATIGUE,183,12. |
| MLA | Liu, Qiang,et al."Low-cycle fatigue behaviour of magnesium alloy thick plate joints fabricated via differential double-shoulder friction stir welding".INTERNATIONAL JOURNAL OF FATIGUE 183(2024):12. |
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。