Grain boundary relaxation behavior and phase stability of AlCrTiVx (x=0, 0.5 and 1) high-entropy alloys
文献类型：期刊论文
| 作者 | Sun, Meng1; Liu, Xueqing1,2; Jiang, Weibin1 ; Lei, Yawei1; Ke, Jiangang1,2; Liu, Rui1; Wang, Xianping1; Wu, Xuebang1; Fang, Qianfeng1; Liu, Changsong1
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| 刊名 | SCRIPTA MATERIALIA
 |
| 出版日期 | 2021-11-01 |
| 卷号 | 204 |
| ISSN号 | 1359-6462 |
| 关键词 | AlCrTiV alloys Internal friction Mixing entropy Grain boundary relaxation |
| DOI | 10.1016/j.scriptamat.2021.114144 |
| 通讯作者 | Wang, Xianping(xpwang@issp.ac.cn) ; Fang, Qianfeng(qffang@issp.ac.cn) |
| 英文摘要 | The defect relaxation behavior of AlCrTiVx (x = 0, 0.5, and 1) high entropy alloys was reported in this paper. A pronounced internal friction (IF) peak superimposing on a monotonously increasing high-temperature background (HTBG) was observed in all samples, which was ascribed to grain boundary peak. The activation energy of grain boundary relaxation increases with the increasing V content, implying an increasing complexity and difficulty of atomic diffusion with the increasing mixing entropy. After annealing at 1100 degrees C for 5 h, the HTBG of AlCrTiV alloy abnormally increases, which was attributed to the appearance of misfit dislocations induced by precipitation of nano-sized Ti-rich phases as confirmed by microstructure analysis. These findings may provide a new degree of freedom for evaluating and designing high entropy alloys with high thermal stability. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| WOS关键词 | INTERNAL-FRICTION ; MICROSTRUCTURE |
| 资助项目 | National Natural Science Foundation of China[U1967211] ; National Natural Science Foundation of China[51971212] ; National Natural Science Foundation of China[51801203] ; National Natural Science Foundation of China[51971213] ; National Key Research and Development Program of China[2017YFA0402800] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000690441400023 |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/125241]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Wang, Xianping; Fang, Qianfeng |
| 作者单位 | 1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Meng,Liu, Xueqing,Jiang, Weibin,et al. Grain boundary relaxation behavior and phase stability of AlCrTiVx (x=0, 0.5 and 1) high-entropy alloys[J]. SCRIPTA MATERIALIA,2021,204. |
| APA | Sun, Meng.,Liu, Xueqing.,Jiang, Weibin.,Lei, Yawei.,Ke, Jiangang.,...&Liu, Changsong.(2021).Grain boundary relaxation behavior and phase stability of AlCrTiVx (x=0, 0.5 and 1) high-entropy alloys.SCRIPTA MATERIALIA,204. |
| MLA | Sun, Meng,et al."Grain boundary relaxation behavior and phase stability of AlCrTiVx (x=0, 0.5 and 1) high-entropy alloys".SCRIPTA MATERIALIA 204(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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