| Modulating the prestrain history to optimize strength and ductility in CoCrFeMnNi high-entropy alloy | |
| Sun, S. J.1,2; Tian, Y. Z.3; Lin, H. R.1,2; Lu, S.4; Yang, H. J.1; Zhang, Z. F.1,2 | |
| Corresponding Author | Tian, Y. Z.(tianyanzhong@mail.neu.edu.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn) |
| 2019-04-01 | |
| Source Publication | SCRIPTA MATERIALIA
 |
| ISSN | 1359-6462 |
| Volume | 163Pages:111-115 |
| Abstract | CoCrFeMnNi high-entropy alloy (HEA) exhibits excellent combination of strength and ductility, but low yield strength. In order to ameliorate the mechanical properties, prestrain was applied in this work. The HEA prestrained at 77 K possesses higher yield strength and uniform elongation than the HEA prestrained at 293 K, indicating that the trade-off relationship between strength and ductility can be broken by modulating the prestrain history. Furthermore, the yield point phenomenon was disappeared after prestrained at 77 K. This can be related to the density and distribution of dislocations as imposed in the prestrain process at 293 K and 77 K. (C) 2019 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved. |
| Keyword | High-entropy alloy Prestrain Temperature Yield strength Elongation |
| Funding Organization | National Natural Science Foundation of China (NSFC) |
| DOI | 10.1016/j.scriptamat.2019.01.012 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China (NSFC)[51501198] ; National Natural Science Foundation of China (NSFC)[51331007] |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000458940000023 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/131883 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Tian, Y. Z.; Zhang, Z. F. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Mat Fatigue & Fracture Div, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Liaoning, Peoples R China 4.Royal Inst Technol, Dept Mat Sci & Engn, Appl Mat Phys, SE-10044 Stockholm, Sweden |
| Recommended Citation GB/T 7714 | Sun, S. J.,Tian, Y. Z.,Lin, H. R.,et al. Modulating the prestrain history to optimize strength and ductility in CoCrFeMnNi high-entropy alloy[J]. SCRIPTA MATERIALIA,2019,163:111-115. |
| APA | Sun, S. J.,Tian, Y. Z.,Lin, H. R.,Lu, S.,Yang, H. J.,&Zhang, Z. F..(2019).Modulating the prestrain history to optimize strength and ductility in CoCrFeMnNi high-entropy alloy.SCRIPTA MATERIALIA,163,111-115. |
| MLA | Sun, S. J.,et al."Modulating the prestrain history to optimize strength and ductility in CoCrFeMnNi high-entropy alloy".SCRIPTA MATERIALIA 163(2019):111-115. |
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