Inhibiting of softening behavior in AA2219 laser welded joints
文献类型：期刊论文
| 作者 | Chi, Jinze1; Song, Haoyang1; Shao, Hongfei1; Zhou, Yiwen1; Zheng, Qiuli2; Lu, Nannan3; Starostenkov, Mikhail Dmitrievich4; Dong, Guojiang1; Bi, Jiang1; Tan, Caiwang5 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 924页码:19 |
| 关键词 | AA2219 OLBW Heat treatment Microstructure control Performance improvement |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2024.147742 |
| 通讯作者 | Bi, Jiang(bijiang198905@163.com) |
| 英文摘要 | The joint softening of AA2219 welded structure has significantly plagued its application in the aerospace industry. In this study, a connection strategy that utilizes oscillating laser beam welding (OLBW) combined with post-weld heat treatment (PWHT) was proposed to inhibit joint softening. Using a multiscale correlative methodology, from the millimeter scale to the nanoscale, we shed light on the failure mechanisms of AA2219 joints fabricated by OLBW. Apart from the macroscopic defects such as pores and collapses, the segregation of strengthening elements at grain boundaries in the fusion zone (FZ) is the primary cause of joint softening. The synergistic effect makes a discontinuous distribution of 0-Al2Cu at grain boundaries and a higher density of nano- sized precipitates (0-Al2Cu, 0 '-Al2Cu) in the grain inner, making the tensile strength significantly higher than that of conventionally laser welded joints, and even approaching that of the base metal (BM). |
| 资助项目 | Hebei Natural Science Foundation[E2024203001] ; Hebei Natural Science Foundation[E2024203049] ; Hebei Natural Science Foundation[E2024203071] ; Special Project for Local Science and Technology Development Guided by the Central Government of Hebei Province[236Z1805G] ; Education Department of Hebei Province graduate student innovation ability training funding project[CXZZSS2024031] ; Scientific research project of colleges and universities in Hebei Province[QN2025167] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001402486700001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Hebei Natural Science Foundation ; Special Project for Local Science and Technology Development Guided by the Central Government of Hebei Province ; Education Department of Hebei Province graduate student innovation ability training funding project ; Scientific research project of colleges and universities in Hebei Province |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Bi, Jiang |
| 作者单位 | 1.Yanshan Univ, Key Lab Adv Forging & Stamping Technol & Sci, Minist Educ, Qinhuangdao 066004, Peoples R China 2.Aviat Ammunit Inst, Norinco Grp, Harbin 150030, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Altai State Tech Univ, Gen Phys Dept, Leninist 46, Barnaul 656099, Russia 5.Harbin Inst Technol, State Key Lab Adv Welding & Joining, 92 West Dazhi St, Harbin 15001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chi, Jinze,Song, Haoyang,Shao, Hongfei,et al. Inhibiting of softening behavior in AA2219 laser welded joints[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2025,924:19. |
| APA | Chi, Jinze.,Song, Haoyang.,Shao, Hongfei.,Zhou, Yiwen.,Zheng, Qiuli.,...&Tan, Caiwang.(2025).Inhibiting of softening behavior in AA2219 laser welded joints.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,924,19. |
| MLA | Chi, Jinze,et al."Inhibiting of softening behavior in AA2219 laser welded joints".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 924(2025):19. |
入库方式： OAI收割
来源：金属研究所
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