| Impact tension behavior of heavy-drawn nanocrystalline CoCrNi medium entropy alloy wire | |
Qiao Y(乔禹); Cao FH(曹富华) ; Chen Y(陈艳); Wang HY(汪海英); Dai LH(戴兰宏)
| |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 2022-10 | |
| Volume | 856Pages:144041 |
| ISSN | 0921-5093 |
| Abstract | High-strength metallic wire is a vital bearing structure used in many industrial fields. Impact loads often challenge the service safety of metal wire in engineering applications. However, few studies have been made on the dynamic mechanical behavior of metallic wires, especially for newly developed high-entropy alloy wires. By equipping split Hopkinson tension bar (SHTB) with specially designed test fixtures, we have carried out a systematic study on the dynamic deformation behavior of the heavily-drawn CoCrNi medium-entropy alloy (MEA) wire in impact tension at both room and cryogenic temperatures. We show that these millimeter-diameter MEA wires with nano-scale grains can achieve an excellent combination of impact tensile strength and ductility at 293 K and 77 K. More interestingly, we find that the strength and ductility of the MEA wire were enhanced simultaneously with decreasing temperature and increasing strain rate. Detailed microstructure characterizations and molecular dynamics simulations reveal that the increased strength and ductility at coupled high strain and low temperature resulted from the multiplication and thinning of nanoscale twins, which further caused additional strengthening and toughening mechanisms such as stack faulting net and secondary twin. This study highlights the advantage of CrCoNi MEA wire for cryogenic temperature and impact applications and provides an experimental reference for the design and evaluation of high-strength metal wires under such extreme conditions. |
| Keyword | High entropy alloy Wire Split hopkinson tension bar High strain rate Low temperature Plastic deformation |
| Subject Area | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| DOI | 10.1016/j.msea.2022.144041 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000863121900001 |
| Funding Organization | NSFC [11790292, 12102433, 11972346] ; NSFC Basic Science Center Program [11988102] ; National Natural Science Foundation of China [U2141204] ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences [QYZDJSSW-JSC011] ; opening project of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology) [KFJJ18-14 M] |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Chen, Y ; Dai, LH (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/90190 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.[Qiao, Yu 2.Cao, Fu-Hua 3.Chen, Yan 4.Wang, Hai-Ying 5.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 6.Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230027, Peoples R China 7.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China 8.Univ Chinese Acad Sci, Sch Future Technol, Beijing 101408, Peoples R China |
| Recommended Citation GB/T 7714 | Qiao Y,Cao FH,Chen Y,et al. Impact tension behavior of heavy-drawn nanocrystalline CoCrNi medium entropy alloy wire[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,856:144041.Rp_Au:Chen, Y, Dai, LH (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| APA | 乔禹,曹富华,陈艳,汪海英,&戴兰宏.(2022).Impact tension behavior of heavy-drawn nanocrystalline CoCrNi medium entropy alloy wire.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,856,144041. |
| MLA | 乔禹,et al."Impact tension behavior of heavy-drawn nanocrystalline CoCrNi medium entropy alloy wire".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 856(2022):144041. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2022FA128_2022_Imp（14617KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment