Inhibiting of softening behavior in AA2219 laser welded joints

doi:10.1016/j.msea.2024.147742

IMR OpenIR

	Inhibiting of softening behavior in AA2219 laser welded joints
	Chi, Jinze 1; Song, Haoyang 1; Shao, Hongfei 1; Zhou, Yiwen 1; Zheng, Qiuli 2; Lu, Nannan 3; Starostenkov, Mikhail Dmitrievich 4; Dong, Guojiang 1; Bi, Jiang 1; Tan, Caiwang 5
通讯作者	Bi, Jiang(bijiang198905@163.com)
	2025-02-01
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	924 页码:19
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).
关键词	AA2219 OLBW Heat treatment Microstructure control Performance improvement
资助者	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
DOI	10.1016/j.msea.2024.147742
收录类别	SCI
语种	英语
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
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001402486700001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/180275
专题	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.