Enhanced strength and ductility of bulk CoCrFeMnNi high entropy alloy having fully recrystallized ultrafine-grained structure
文献类型：期刊论文
| 作者 | Sun, S. J.; Tian, Y. Z.; Lin, H. R.; Dong, X. G.; Wang, Y. H.; Zhang, Z. J.; Zhang, Z. F.; Tian, YZ; Zhang, ZF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China. |
| 刊名 | ELSEVIER SCI LTD
 |
| 出版日期 | 2017-11-05 |
| 卷号 | 133页码:122-127 |
| ISSN号 | 0264-1275 |
| 关键词 | High-entropy Alloy (Hea) Ultrafine Grain Hall-petch Relationship Strength Ductility |
| 英文摘要 | A high efficient magnetic levitation melting technique was reported for fabricating bulk equiatomic CoCrFeMnNi high-entropy alloy (HEA) ingot with a diameter of 110 mm. The bulk ingot can be either forged or rolled. In particular, fully recrystallized ultrafine-grained (UFG) HEA with a minimum grain size of 503 +/- 181 nm was successfully obtained through a simple cold rolling and annealing process. The tensile properties of the HEA were studied by changing the grain size from the UFG regime to the coarse-grained regime. The UFG HEA exhibited a good balance of strength and ductility due to the low stacking fault energy. The linear Hall-Petch relationship was well fitted when the grain sizes range from 503 nm to 88.9 mu m. (C) 2017 Elsevier Ltd. All rights reserved.; A high efficient magnetic levitation melting technique was reported for fabricating bulk equiatomic CoCrFeMnNi high-entropy alloy (HEA) ingot with a diameter of 110 mm. The bulk ingot can be either forged or rolled. In particular, fully recrystallized ultrafine-grained (UFG) HEA with a minimum grain size of 503 +/- 181 nm was successfully obtained through a simple cold rolling and annealing process. The tensile properties of the HEA were studied by changing the grain size from the UFG regime to the coarse-grained regime. The UFG HEA exhibited a good balance of strength and ductility due to the low stacking fault energy. The linear Hall-Petch relationship was well fitted when the grain sizes range from 503 nm to 88.9 mu m. (C) 2017 Elsevier Ltd. All rights reserved. |
| 学科主题 | Materials Science, Multidisciplinary |
| 语种 | 英语 |
| 资助机构 | National Natural Science Foundation of China (NSFC) [51331007, 51501198] |
| 公开日期 | 2018-01-10 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78989]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Tian, YZ; Zhang, ZF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Sun, S. J.,Tian, Y. Z.,Lin, H. R.,et al. Enhanced strength and ductility of bulk CoCrFeMnNi high entropy alloy having fully recrystallized ultrafine-grained structure[J]. ELSEVIER SCI LTD,2017,133:122-127. |
| APA | Sun, S. J..,Tian, Y. Z..,Lin, H. R..,Dong, X. G..,Wang, Y. H..,...&Zhang, ZF .(2017).Enhanced strength and ductility of bulk CoCrFeMnNi high entropy alloy having fully recrystallized ultrafine-grained structure.ELSEVIER SCI LTD,133,122-127. |
| MLA | Sun, S. J.,et al."Enhanced strength and ductility of bulk CoCrFeMnNi high entropy alloy having fully recrystallized ultrafine-grained structure".ELSEVIER SCI LTD 133(2017):122-127. |
入库方式： OAI收割
来源：金属研究所
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