Microstructure and mechanical properties of electron beam welded TiZrNbTa refractory high entropy alloy

doi:10.1016/j.mtcomm.2022.103847

IMR OpenIR

	Microstructure and mechanical properties of electron beam welded TiZrNbTa refractory high entropy alloy
	Li, N.1,2; Wang, R. X.3; Zhao, H. B.1; Tang, Y.3; Xue, P.1,4; Ni, D. R.1; Xiao, B. L.1; Ma, Z. Y.1; Wu, L. H.1,4
通讯作者	Tang, Y.(tangyu15@zju.edu.cn) ; Wu, L. H.(lhwu@imr.ac.cn)
	2022-08-01
发表期刊	MATERIALS TODAY COMMUNICATIONS
卷号	32 页码:9
摘要	It is stringent to develop welding techniques for refractory high entropy alloys (RHEAs) to fabricate large-sized components, since it is difficult to fabricate large-sized RHEA castings because of their poor fluidity and severe element segregation. Here, we first time utilize electron beam welding (EBW) to join TiZrNbTa RHEA, and a defect-free joint is successfully achieved. After EBW, a coarse casting microstructure is largely refined with the reduction of casting porosities. The average hardness in the entire joint is almost uniform, which is the comprehensive effect between the weakening of solution strengthening and the grain refinement strengthening. The tensile strength of the joint achieves 940 MPa, with a high strength efficiency of 90%. This study provides a way to fabricate large-sized RHEA components.
关键词	Refractory high entropy alloys Electron beam welding Microstructure Mechanical properties
资助者	Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Natural Science Foundation of China
DOI	10.1016/j.mtcomm.2022.103847
收录类别	SCI
语种	英语
资助项目	Youth Innovation Promotion Association of the Chinese Academy of Sciences[2021193] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[Y2021061] ; National Natural Science Foundation of China[U20A20231]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000868693100001
出版者	ELSEVIER
引用统计	被引频次：5[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/321006/175429
专题	中国科学院金属研究所
通讯作者	Tang, Y.; Wu, L. H.
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 3.Natl Univ Def Technol, Coll Aerosp Sci & Engn, Dept Mat Sci & Engn, Changsha 410073, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, N.,Wang, R. X.,Zhao, H. B.,et al. Microstructure and mechanical properties of electron beam welded TiZrNbTa refractory high entropy alloy[J]. MATERIALS TODAY COMMUNICATIONS,2022,32:9.
APA	Li, N..,Wang, R. X..,Zhao, H. B..,Tang, Y..,Xue, P..,...&Wu, L. H..(2022).Microstructure and mechanical properties of electron beam welded TiZrNbTa refractory high entropy alloy.MATERIALS TODAY COMMUNICATIONS,32,9.
MLA	Li, N.,et al."Microstructure and mechanical properties of electron beam welded TiZrNbTa refractory high entropy alloy".MATERIALS TODAY COMMUNICATIONS 32(2022):9.