Effects of different friction stir welding processes on residual stress and deformation of Ti62A alloy joints

doi:10.1016/j.jmrt.2023.08.308

IMR OpenIR

	Effects of different friction stir welding processes on residual stress and deformation of Ti62A alloy joints
	Wang, Bin 1; Zhu, Peng 1; Cao, Yunshuo 1; Zhou, Li 1; Xue, Peng 2; Wu, Lihui 2
通讯作者	Zhou, Li(lizhou@ytu.edu.cn)
	2023-09-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	26 页码:6096-6107
摘要	Residual stress induced by welding easily causes deformation and even fracture failure in welded structures. In this paper, a three-dimensional thermal-mechanical coupling finite element model of friction stir welding (FSW) was developed. The effects of different welding processes, namely conventional friction stir welding (C-FSW), stationary shoulder friction stir welding (SS-FSW), and bobbin tool friction stir welding (BT-FSW), on the temperature, residual stress, and deformation of welded joints were investigated by employing a heat source model and a force model to the welding analysis. The results reveal that a discernible disparity in temperature gradient is observed in the region ahead of the tool and behind it among various welding processes. The peak values of longitudinal residual stress along the surface and bottom paths of SS-FSW are reduced by 35.7% and 34.1%, respectively. In addition, the deformation at the initial end of the weld is slightly larger than that at the final end along the welding direction in three welding processes. Compared with other FSW processes, SS-FSW exhibits the smallest deformation, which is advantageous for improving assembly accuracy and enhancing the load-bearing capacity of weldments. The above results provide an important theoretical reference for the FSW process optimization of Ti62A alloy.(c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
关键词	Friction stir welding Ti62A alloy Residual stress Deformation
资助者	Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Graduate Innovation Foundation of Yantai University
DOI	10.1016/j.jmrt.2023.08.308
收录类别	SCI
语种	英语
资助项目	Youth Innovation Promotion Association of the Chinese Academy of Sciences[Y2021061] ; Graduate Innovation Foundation of Yantai University[GGIFYTU2347]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001079097700001
出版者	ELSEVIER
引用统计	被引频次：13[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/321006/179401
专题	中国科学院金属研究所
通讯作者	Zhou, Li
作者单位	1.Yantai Univ, Sch Electromech & Automot Engn, Yantai 264005, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Bin,Zhu, Peng,Cao, Yunshuo,et al. Effects of different friction stir welding processes on residual stress and deformation of Ti62A alloy joints[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2023,26:6096-6107.
APA	Wang, Bin,Zhu, Peng,Cao, Yunshuo,Zhou, Li,Xue, Peng,&Wu, Lihui.(2023).Effects of different friction stir welding processes on residual stress and deformation of Ti62A alloy joints.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,26,6096-6107.
MLA	Wang, Bin,et al."Effects of different friction stir welding processes on residual stress and deformation of Ti62A alloy joints".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 26(2023):6096-6107.