Room-Temperature Mechanical Properties of V20Nb20Mo20Ta20W20 High-Entropy Alloy

doi:10.1002/adem.201800028

CORC > 金属研究所 > 中国科学院金属研究所

	Room-Temperature Mechanical Properties of V20Nb20Mo20Ta20W20 High-Entropy Alloy
	Wu, Shao Jie 1,3; Wang, Xiao Di 1; Lu, Jin Tao 2; Qu, Rui Tao 1; Zhang, Zhe Feng 1,3
刊名	ADVANCED ENGINEERING MATERIALS
	2018-07-01
卷号	20 期号:7 页码:8
关键词	fracture mechanism mechanical properties plasticity refractory high-entropy alloy strength
ISSN号	1438-1656
DOI	10.1002/adem.201800028
通讯作者	Qu, Rui Tao(rtqu@imr.ac.cn) ; Zhang, Zhe Feng(zhfzhang@imr.ac.cn)
英文摘要	Refractory high-entropy alloys (HEAs) have shown promising high temperature strengths, while their mechanical behaviors at room temperature are rarely reported. In this work, the room-temperature mechanical properties of V20Nb20Mo20Ta20W20 refractory HEA under various different loading modes including tension, compression, bending, shear loading, and microhardness are investigated. The results show that this alloy exhibits very high compressive strength but quite low strengths under tension, bending, and shear loading, similar to the conventional brittle materials. However, pronounced plasticity and slip bands are observed in compression samples, and no indentation cracking is observed in low-load microhardness tests, which indicate the potential ability of plastic deformation in this refractory HEA. The present work suggests that the microstructure or composition of this HEA should be carefully tailored before its practical usage to suppress its large tendency for cracking and eventually improve its ductility and strength under tension.
资助项目	National Natural Science Foundation of China (NSFC)[51771205] ; National Natural Science Foundation of China (NSFC)[51331007]
WOS研究方向	Materials Science
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000439735800028
资助机构	National Natural Science Foundation of China (NSFC)
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/129015]
专题	金属研究所_中国科学院金属研究所
通讯作者	Qu, Rui Tao; Zhang, Zhe Feng
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Xian Thermal Power Res Inst Co Ltd, Natl Energy R&D Ctr Clean & High Efficiency Fossi, Xian 710032, Shaanxi, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Wu, Shao Jie,Wang, Xiao Di,Lu, Jin Tao,et al. Room-Temperature Mechanical Properties of V20Nb20Mo20Ta20W20 High-Entropy Alloy[J]. ADVANCED ENGINEERING MATERIALS,2018,20(7):8.
APA	Wu, Shao Jie,Wang, Xiao Di,Lu, Jin Tao,Qu, Rui Tao,&Zhang, Zhe Feng.(2018).Room-Temperature Mechanical Properties of V20Nb20Mo20Ta20W20 High-Entropy Alloy.ADVANCED ENGINEERING MATERIALS,20(7),8.
MLA	Wu, Shao Jie,et al."Room-Temperature Mechanical Properties of V20Nb20Mo20Ta20W20 High-Entropy Alloy".ADVANCED ENGINEERING MATERIALS 20.7(2018):8.