| A novel reactive high-entropy alloy with ultra-strong strain-rate effect | |
Zhang WH(张洧菡)1,3; Li T(李统)1; Chen Y(陈艳)1,4 ; Tan YY(谭园园)1; Wang HY(汪海英)1,4; Dai LH(戴兰宏)1,2,3,4
| |
| Corresponding Author | Chen, Yan([email protected]) ; Dai, Lan-Hong([email protected]) |
| Source Publication | INTERMETALLICS
 |
| 2025-05-01 | |
| Volume | 180Pages:8 |
| ISSN | 0966-9795 |
| Abstract | Reactive structural materials are crucial for energy exploitation and defense applications due to their outstanding energy release characteristics. However, traditional reactive structural materials often struggle to meet the required mechanical properties. In contrast, reactive high-entropy alloys that balance mechanical performance and energy release characteristics show great potential in this field. Here, we designed the active high-entropy alloy Ti50Zr25Hf12.5Nb12.5, at% using a metastable high-entropy alloy design strategy ("d-electron alloy" strategy). The alloy exhibits a single-phase BCC structure both before and after quasi-static tension, but undergoes an impact-induced omega phase transition during dynamic tension, resulting in an unprecedented increase in yield strength from 751 MPa to 1577 MPa (an increase of 110 %). Microstructural characterization revealed that the high-density dislocation walls resulting from the omega phase transition contribute to the significant strain-rate effect of the alloy. Furthermore, direct ballistic tests demonstrated that this novel active high-entropy alloy possesses excellent energy release characteristics (similar to 0.27 MPa assessed via Vented Chamber Calorimetry in 996 m/s direct ballistic test). This work sheds new light on designing reactive high entropy alloy with high dynamic strength may provide a mean to develop a wide range of advanced reactive structural materials. |
| Keyword | High-entropy alloys Reactive structure materials Impact behaviour Strain-rate effect |
| DOI | 10.1016/j.intermet.2025.108689 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001424006100001 |
| WOS Keyword | SIGMA-PHASE FORMATION ; BETA-TITANIUM ALLOY ; ENERGETIC CHARACTERISTICS ; OMEGA-PHASE ; CRITERION ; ALUMINUM ; BEHAVIOR ; MICROSTRUCTURE ; COMBUSTION ; TRANSITION |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Project | NSFC[12432019] ; NSFC[U2141204] ; NSFC[11972346] ; NSFC[12102433] ; NSFC[U2241285] ; NSFC Basic Science Center Program[11988102] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-2-3] ; National Key Research and Development Program of China[2022YFC3320504-02] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB0620301] ; Postdoctoral Fellowship Program of CPSF[BX20240387] |
| Funding Organization | NSFC ; NSFC Basic Science Center Program ; Key Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Postdoctoral Fellowship Program of CPSF |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | 陈艳 ; 戴兰宏 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/100126 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China; 3.Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China; 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang WH,Li T,Chen Y,et al. A novel reactive high-entropy alloy with ultra-strong strain-rate effect[J]. INTERMETALLICS,2025,180:8.Rp_Au:陈艳, 戴兰宏 |
| APA | 张洧菡,李统,陈艳,谭园园,汪海英,&戴兰宏.(2025).A novel reactive high-entropy alloy with ultra-strong strain-rate effect.INTERMETALLICS,180,8. |
| MLA | 张洧菡,et al."A novel reactive high-entropy alloy with ultra-strong strain-rate effect".INTERMETALLICS 180(2025):8. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment