Chemical medium-range order in a medium-entropy alloy
文献类型：期刊论文
| 作者 | Wang, Jing2; Jiang, Ping2 ; Yuan, Fuping1,2; Wu, Xiaolei1,2; Wang J(王晶); Jiang P(姜萍); Yuan FP(袁福平); Wu XL(武晓雷)
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| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2022-02-23 |
| 卷号 | 13期号:1页码:6 |
| DOI | 10.1038/s41467-022-28687-w |
| 通讯作者 | Wu, Xiaolei(xlwu@imech.ac.cn) |
| 英文摘要 | High-/medium-entropy alloys (H/MEA) have the inherent local chemical order. Yet, as a structural link between the incipient short-range order and mature long-range counterpart, the chemical medium-range order (CMRO) is conjectural and remains open questions as to if, and what kind of, CMRO would be produced and if CMRO is mechanically stable during plastic deformation. Here, we show compelling evidences for CMRO in an Al9.5CrCoNi MEA. Specifically, the electron diffraction under both [112] and [013] zone axis show the definite spots for CMRO of lattice periodicity. CMRO entities are seen directly of medium-ranged in sizes by using dark-field imaging, along with the tendency towards like-pair avoidance and unlike-pair preference based on atomic-resolution EDS mapping. These findings substantiate CMRO with a realistic structural picture in view of crystal periodicity and chemical species occupation, shedding light on understanding the microstructural link at an extended length scale beyond the short-range order. |
| WOS关键词 | AL ADDITION |
| 资助项目 | National Key R&D Program of China, MOST[2019YFA0209900] ; National Key R&D Program of China, MOST[2017YFA0204402] ; Natural Science Foundation of China[11988102] ; Natural Science Foundation of China[11972350] ; Natural Science Foundation of China[11790293] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000760426000004 |
| 资助机构 | National Key R&D Program of China, MOST ; Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/88739]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Wu, Xiaolei |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jing,Jiang, Ping,Yuan, Fuping,et al. Chemical medium-range order in a medium-entropy alloy[J]. NATURE COMMUNICATIONS,2022,13(1):6. |
| APA | Wang, Jing.,Jiang, Ping.,Yuan, Fuping.,Wu, Xiaolei.,王晶.,...&武晓雷.(2022).Chemical medium-range order in a medium-entropy alloy.NATURE COMMUNICATIONS,13(1),6. |
| MLA | Wang, Jing,et al."Chemical medium-range order in a medium-entropy alloy".NATURE COMMUNICATIONS 13.1(2022):6. |
入库方式： OAI收割
来源：力学研究所
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