Enhanced plasticity in refractory high-entropy alloy via multicomponent ceramic nanoparticle
文献类型：期刊论文
| 作者 | Li HY(李洪毅)2,3; Cao FH(曹富华)3 ; Li T(李统)3; Tan YY(谭园园)3; Chen Y(陈艳)2,3; Wang HY(汪海英)2,3; Liaw, Peter K1; Dai LH(戴兰宏)2,3
|
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2024-09-20 |
| 卷号 | 194页码:51-62 |
| 关键词 | Refractory high-entropy superalloys Plasticity Multicomponent ceramic nanoparticles Ordering-disordering transition |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2024.01.030 |
| 通讯作者 | Liaw, Peter K.(pliaw@utk.edu) ; Dai, Lanhong(lhdai@lnm.imech.ac.cn) |
| 英文摘要 | Refractory high-entropy alloys (RHEAs) exhibit remarkable strengths at elevated temperatures and are hence extremely promising candidates for high-temperature structural materials. However, the RHEAs with ordered superlattice structures generally suffer from poor room-temperature plasticity, which severely hampers their widespread applications. Here, we discovered that the introduction of multicomponent ceramic nanoparticles (MCNPs) into the RHEAs makes the problem alleviative and realizes a multifold increase in plasticity without sacrificing strength. The detailed characterizations show that the improvement originates from the chemical ordering-disordering transition near MCNPs in the B2ordered RHEAs. This transition promotes the formation of local disordered regions where the mobility of dislocations is significantly enhanced. These regions wrap around MCNPs to form a unique heterogeneous structure, which suppresses the premature microcracks by the boosted dislocation mobility. Simultaneously, the existence of stable MCNPs prevents grain coarsening at elevated temperatures by Zener pinning. These novel alloy-design ideas shed new insights into developing RHEAs with an outstanding combination of strength and plasticity. (c) 2024 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 分类号 | 一类 |
| WOS关键词 | GRAIN-BOUNDARY SEGREGATION ; MECHANICAL-PROPERTIES ; MICROSTRUCTURE ; STRENGTH ; GROWTH ; ALUMINUM ; PHASE ; BORON ; TIB ; NANOCRYSTALLINE |
| 资助项目 | Ye Qisun Science Foundation of National Natural Science Foundation of China[U2141204] ; NSFC[12102433] ; NSFC[11972346] ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; Opening project of State Key Laboratory of Explosion Science and Technology[KFJJ23-03M] ; National Science Foundation[DMR-1611180] ; National Science Foundation[1809640] ; National Science Foundation[2226508] ; US Army Research Office[W911NF-13-1-0438] ; US Army Research Office[W911NF-19-2-0049] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001214841800001 |
| 资助机构 | Ye Qisun Science Foundation of National Natural Science Foundation of China ; NSFC ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; Opening project of State Key Laboratory of Explosion Science and Technology ; National Science Foundation ; US Army Research Office |
| 其他责任者 | Liaw, Peter K. ; Dai, Lanhong |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/95067]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Li HY,Cao FH,Li T,et al. Enhanced plasticity in refractory high-entropy alloy via multicomponent ceramic nanoparticle[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2024,194:51-62. |
| APA | 李洪毅.,曹富华.,李统.,谭园园.,陈艳.,...&戴兰宏.(2024).Enhanced plasticity in refractory high-entropy alloy via multicomponent ceramic nanoparticle.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,194,51-62. |
| MLA | 李洪毅,et al."Enhanced plasticity in refractory high-entropy alloy via multicomponent ceramic nanoparticle".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 194(2024):51-62. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。