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Room-Temperature Mechanical Properties of V20Nb20Mo20Ta20W20 High-Entropy Alloy
Wu, Shao Jie1,2; Wang, Xiao Di1; Lu, Jin Tao3; Qu, Rui Tao1; Zhang, Zhe Feng1,2
Corresponding AuthorQu, Rui Tao(rtqu@imr.ac.cn) ; Zhang, Zhe Feng(zhfzhang@imr.ac.cn)
2018-07-01
Source PublicationADVANCED ENGINEERING MATERIALS
ISSN1438-1656
Volume20Issue:7Pages:8
AbstractRefractory 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.
Keywordfracture mechanism mechanical properties plasticity refractory high-entropy alloy strength
Funding OrganizationNational Natural Science Foundation of China (NSFC)
DOI10.1002/adem.201800028
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[51771205] ; National Natural Science Foundation of China (NSFC)[51331007]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000439735800028
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/129019
Collection中国科学院金属研究所
Corresponding AuthorQu, Rui Tao; Zhang, Zhe Feng
Affiliation1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
3.Xian Thermal Power Res Inst Co Ltd, Natl Energy R&D Ctr Clean & High Efficiency Fossi, Xian 710032, Shaanxi, Peoples R China
Recommended Citation
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.
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