| D022 precipitates strengthened W-Ta-Fe-Ni refractory high-entropy alloy |
| Li T(李统); Chen JX(陈金玺); Liu TW(刘天威); Chen Y(陈艳); Luan, Jun-Hua; Jiao, Zeng-Bao; Liu, Chain-Tsuan; Dai LH(戴兰宏)
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通讯作者 | Dai, Lan -Hong(lhdai@lnm.imech.ac.cn)
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发表期刊 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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| 2024-04-01
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卷号 | 177页码:85-95 |
ISSN | 1005-0302
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摘要 | Refractory high-entropy alloys have recently emerged as promising candidates for high-temperature structural applications. However, their performance is compromised by the trade-off required between strength and ductility. Here, a novel W30Ta5(FeNi)(65) refractory high-entropy alloy with an outstanding combination of strength and plasticity at both room and elevated temperatures is designed, based on the multi-phase transitions design strategy. The alloy comprises a body-centered cubic dendrite phase, a topologically close-packed mu rhombohedral phase, and a high-density coherent nano-precipitate gamma '' phase with the D0(22) structure (Ni3Ta type) embedded in a continuous face-centered cubic matrix. Owing to precipitation strengthening of D0(22), the yield stress of the alloy is determined as high as 1450 MPa, which is a significant improvement (similar to 100%) in comparison with the D0(22)-free alloy, without a loss of ductility. This alloy exhibits an excellent high-temperature strength, with the yield strengths of 1300 MPa at 600 degrees C and 320 MPa at 1000 degrees C. Detailed microstructural characterization using transmission electron microscopy, high-angle annular dark-field imaging, and three-dimensional atom probe tomography analyses indicated that this superior strength-plasticity combination stems from the synergy of a multiple-phase structure. These results provide a new insight into the design of RHEAs and other advanced alloys. (c) 2023 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
关键词 | Refractory high entropy alloy
Multi-phase structure
D0(22) superlattice
Precipitation strengthening
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DOI | 10.1016/j.jmst.2023.07.069
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收录类别 | SCI
; EI
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语种 | 英语
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WOS记录号 | WOS:001112071600001
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关键词[WOS] | MECHANICAL-PROPERTIES
; FRACTURE-TOUGHNESS
; TEMPERATURE
; PHASE
; BEHAVIOR
; SUPERALLOY
; EVOLUTION
; MICROSTRUCTURE
; GAMMA''
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WOS研究方向 | Materials Science
; Metallurgy & Metallurgical Engineering
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WOS类目 | Materials Science, Multidisciplinary
; Metallurgy & Metallurgical Engineering
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资助项目 | National Natural Science Foundation of China[11790292]
; National Natural Science Foundation of China[11972346]
; National Natural Science Foundation of China[12102433]
; National Natural Science Foundation of China[U2141204]
; National Natural Science Foundation of China[11988102]
; National Key Research and Development Program of China[2017YFB0702003]
; Key Re-search Program of the Chinese Academy of Sciences[ZDRW-CN-2021-2-3]
; Strategic Priority Research Program
; Key Research Program of Frontier Sciences
; Science Challenge Project
; Key Research Program of the Chinese Academy of Sciences
; Opening Project of State Key Laboratory of Explosion Science and Technology
; [XDB22040302]
; [XDB22040303]
; [QYZDJSSW-JSC011]
; [TZ2016001]
; [KFJJ21-01Z]
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项目资助者 | National Natural Science Foundation of China
; National Key Research and Development Program of China
; Key Re-search Program of the Chinese Academy of Sciences
; Strategic Priority Research Program
; Key Research Program of Frontier Sciences
; Science Challenge Project
; Key Research Program of the Chinese Academy of Sciences
; Opening Project of State Key Laboratory of Explosion Science and Technology
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论文分区 | 一类
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力学所作者排名 | 1
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RpAuthor | Dai, Lan -Hong
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引用统计 |
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文献类型 | 期刊论文
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条目标识符 | http://dspace.imech.ac.cn/handle/311007/93591
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专题 | 非线性力学国家重点实验室
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推荐引用方式 GB/T 7714 |
Li T,Chen JX,Liu TW,et al. D022 precipitates strengthened W-Ta-Fe-Ni refractory high-entropy alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2024,177:85-95.
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APA |
李统.,陈金玺.,刘天威.,陈艳.,Luan, Jun-Hua.,...&戴兰宏.(2024).D022 precipitates strengthened W-Ta-Fe-Ni refractory high-entropy alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,177,85-95.
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MLA |
李统,et al."D022 precipitates strengthened W-Ta-Fe-Ni refractory high-entropy alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 177(2024):85-95.
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