Near-Equiatomic mu Phase in Self-Sharpening Tungsten-Based High-Entropy Alloys | |
Liu TW(刘天威)1,2; Li T(李统)1,2; Dai LH(戴兰宏)1,2 | |
通讯作者 | Dai, Lan-Hong(lhdai@lnm.imech.ac.cn) |
发表期刊 | METALS |
2022-07-01 | |
卷号 | 12期号:7页码:12 |
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. |
关键词 | high-entropy alloys TCP phase mu phase self-sharpening transmission electron microscope |
DOI | 10.3390/met12071130 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000833327900001 |
关键词[WOS] | PLANAR DEFECTS ; TCP PHASE ; BEHAVIOR ; DEFORMATION ; MICROSTRUCTURE ; TEMPERATURE ; PARTICLES ; SIZE |
WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
WOS类目 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
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] |
项目资助者 | 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) |
论文分区 | 二类 |
力学所作者排名 | 1 |
RpAuthor | Dai, Lan-Hong |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/89810 |
专题 | 非线性力学国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Liu TW,Li T,Dai LH. Near-Equiatomic mu Phase in Self-Sharpening Tungsten-Based High-Entropy Alloys[J]. METALS,2022,12,7,:12. |
APA | 刘天威,李统,&戴兰宏.(2022).Near-Equiatomic mu Phase in Self-Sharpening Tungsten-Based High-Entropy Alloys.METALS,12(7),12. |
MLA | 刘天威,et al."Near-Equiatomic mu Phase in Self-Sharpening Tungsten-Based High-Entropy Alloys".METALS 12.7(2022):12. |
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