Influence of processing innovations on joint strength improvements in friction stir welded high strength copper alloys

doi:10.1016/j.msea.2023.144983

IMR OpenIR

	Influence of processing innovations on joint strength improvements in friction stir welded high strength copper alloys
	Wang, Y. D.1,2; Xue, P.1; Liu, F. C.1; Wu, L. H.1; Zhang, H.1; Zhang, Z.1; Ni, D. R.1; Xiao, B. L.1; Ma, Z. Y.1
通讯作者	Liu, F. C.(liufc@imr.ac.cn) ; Ni, D. R.(drni@imr.ac.cn)
	2023-05-08
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	872 页码:11
摘要	One of the major challenges in welding the Cu-Cr-Zr alloys is that the high welding temperature often causes the coarsening of the precipitates, resulting in lower joint strength. Various strategies were studied to reduce the welding temperature below the aging temperature for limiting the precipitate coarsening. The results showed that great challenges existed in reducing the friction stir welding (FSW) temperature below the peak-aging temperature of Cu-Cr-Zr alloy (420-480 degrees C) without using coolant. Through softening the Cu-Cr-Zr alloys to the supersaturated solid solution state prior to FSW, the peak temperature during FSW of Cu-Cr-Zr alloy under water was reduced to similar to 481 degrees C, which is close to the aging temperate of the Cu-Cr-Zr alloy. After post-weld aging heat treatment, the stir zone exhibited higher hardness than the peak-aged Cu-Cr-Zr alloy due to the combination of the high density of precipitates 10.5 nm in diameter and refined grains 0.65 mu m in diameter, enabling the achievement of high joint strength equal to the peak-aged base metal. In addition, the FSW zone also exhibited a high electrical conductivity of 88.9% IACS, which is higher than that of the peak-aged base material (81.0% IACS).
关键词	Copper alloys Friction stir welding Fine-grains Tensile strength Electrical conductivity Post-weld heat treatment
资助者	LiaoNing Revitalization Talents Program ; Youth Innovation Pro-motion Association of the Chinese Academy of Sciences ; Liaoning Province Excellent Youth Foundation
DOI	10.1016/j.msea.2023.144983
收录类别	SCI
语种	英语
资助项目	LiaoNing Revitalization Talents Program[XLYC2002099] ; Youth Innovation Pro-motion Association of the Chinese Academy of Sciences[Y2021061] ; Liaoning Province Excellent Youth Foundation[:2021-YQ-01]
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:001026456100001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：8[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/321006/178607
专题	中国科学院金属研究所
通讯作者	Liu, F. C.; Ni, D. R.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Y. D.,Xue, P.,Liu, F. C.,et al. Influence of processing innovations on joint strength improvements in friction stir welded high strength copper alloys[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2023,872:11.
APA	Wang, Y. D..,Xue, P..,Liu, F. C..,Wu, L. H..,Zhang, H..,...&Ma, Z. Y..(2023).Influence of processing innovations on joint strength improvements in friction stir welded high strength copper alloys.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,872,11.
MLA	Wang, Y. D.,et al."Influence of processing innovations on joint strength improvements in friction stir welded high strength copper alloys".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 872(2023):11.