Near-Equiatomic mu Phase in Self-Sharpening Tungsten-Based High-Entropy Alloys
文献类型：期刊论文
| 作者 | Liu, Tian-Wei1,2 ; Li, Tong1,2; Dai, Lan-Hong1,2; Dai LH(戴兰宏); Liu TW(刘天威)
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| 刊名 | METALS
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| 出版日期 | 2022-07-01 |
| 卷号 | 12期号:7页码:12 |
| 关键词 | high-entropy alloys TCP phase mu phase self-sharpening transmission electron microscope |
| DOI | 10.3390/met12071130 |
| 通讯作者 | Dai, Lan-Hong(lhdai@lnm.imech.ac.cn) |
| 英文摘要 | The topologically close-packed (TCP) mu phase is usually known as an undesirable precipitation in highly alloyed Ni-base superalloys and steels. However, the ultrastrong mu phase with micron/nano-scale distribution plays a key role in driving the emergence of self-sharpening in our recently developed WMoFeNi high-entropy alloy (HEA). Herein, a detailed study is carried out to understand the substructure and atomic occupation of the mu phase by scanning electron microscope (SEM) and aberration-corrected transmission electron microscope (ACTEM). The Fe/Ni and W/Mo element pairs are equivalent in the mu phase structure. Moreover, the elements in mu. phase exhibit a near-equiatomic ratio, and the mu phase can grow during annealing at 1150 degrees C. (0001)(mu) and (1 (1) over bar 02)(mu) twins are the main substructures of the mu phase, and their atomic configurations and twinning mechanisms are investigated. The geometrical structural analysis of mu phase possesses a great significance for the design of self-sharpening HEAs. |
| WOS关键词 | PLANAR DEFECTS ; TCP PHASE ; BEHAVIOR ; DEFORMATION ; MICROSTRUCTURE ; TEMPERATURE ; PARTICLES ; SIZE |
| 资助项目 | National Science Foundation of China (NSFC)[51901235] ; National Science Foundation of China (NSFC)[51931005] ; National Science Foundation of China (NSFC)[11790292] ; National Science Foundation of China (NSFC)[11572324] ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; Ye Qisun Science Foundation of National Natural Science Foundation of China[U2141204] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040302] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040303] ; opening project of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology)[KFJJ18-14M] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000833327900001 |
| 资助机构 | National Science Foundation of China (NSFC) ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; Ye Qisun Science Foundation of National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; opening project of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology) |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/89809]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Dai, Lan-Hong |
| 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 | Liu, Tian-Wei,Li, Tong,Dai, Lan-Hong,et al. Near-Equiatomic mu Phase in Self-Sharpening Tungsten-Based High-Entropy Alloys[J]. METALS,2022,12(7):12. |
| APA | Liu, Tian-Wei,Li, Tong,Dai, Lan-Hong,戴兰宏,&刘天威.(2022).Near-Equiatomic mu Phase in Self-Sharpening Tungsten-Based High-Entropy Alloys.METALS,12(7),12. |
| MLA | Liu, Tian-Wei,et al."Near-Equiatomic mu Phase in Self-Sharpening Tungsten-Based High-Entropy Alloys".METALS 12.7(2022):12. |
入库方式： OAI收割
来源：力学研究所
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