Strong and ductile bicontinuous Cu-RHEA composites formed by liquid metal dealloying
文献类型：期刊论文
| 作者 | Shao, Jun-Chao; Xie, Hui; Jin, Hai-Jun |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 915页码:7 |
| 关键词 | Double-phase material Dealloying Refractory high entropy alloy Inter-granular etching Ductility |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2024.147222 |
| 通讯作者 | Shao, Jun-Chao(jcshao@imr.ac.cn) |
| 英文摘要 | Inter-granular etching often leads to 'weakened grain boundaries', which deteriorate the ductility of (nano-) composites or porous materials fabricated by liquid metal dealloying (LMD). In this paper, we report that inter- granular etching can be suppressed by the addition of Zr in Ti-Ta precursor, while it is dealloyed in liquid Cu. This procedure removes grain-boundary-like defects in obtained bicontinuous Cu-Ta composites, and improve their ductility in tension. By replacing Ta with a refractory high entropy alloy (RHEA), i.e. MoNbTaVW, we also obtain high-quality bicontinuous Cu-RHEA composites with low density, high tensile strength and excellent ductility. The suppression of inter-granular etching, which is essential to the mechanical stability of LMDmade materials, might arise from the decrease of grain boundary energy of Ti-Ta precursor alloys induced by Zr addition. New materials developed in this study may enable novel applications by enlarging the property space and overcoming the poor malleability and machinability of conventional materials of this type (such as Cu-W composites). |
| 资助项目 | National Natural Science Foundation of China[52101204] ; Shenyang National Laboratory for Materials Science, PR China[L2020F39] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001311518100001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China ; Shenyang National Laboratory for Materials Science, PR China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Shao, Jun-Chao |
| 作者单位 | Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shao, Jun-Chao,Xie, Hui,Jin, Hai-Jun. Strong and ductile bicontinuous Cu-RHEA composites formed by liquid metal dealloying[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,915:7. |
| APA | Shao, Jun-Chao,Xie, Hui,&Jin, Hai-Jun.(2024).Strong and ductile bicontinuous Cu-RHEA composites formed by liquid metal dealloying.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,915,7. |
| MLA | Shao, Jun-Chao,et al."Strong and ductile bicontinuous Cu-RHEA composites formed by liquid metal dealloying".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 915(2024):7. |
入库方式： OAI收割
来源：金属研究所
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