| Enhanced plasticity in refractory high-entropy alloy via multicomponent ceramic nanoparticle | |
Li HY(李洪毅)1,2; Cao FH(曹富华)1 ; Li T(李统)1; Tan YY(谭园园)1; Chen Y(陈艳)1,2; Wang HY(汪海英)1,2; Liaw, Peter K3; Dai LH(戴兰宏)1,2
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| Corresponding Author | Liaw, Peter K.([email protected]) ; Dai, Lanhong([email protected]) |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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| 2024-09-20 | |
| Volume | 194Pages:51-62 |
| ISSN | 1005-0302 |
| Abstract | 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. |
| Keyword | Refractory high-entropy superalloys Plasticity Multicomponent ceramic nanoparticles Ordering-disordering transition |
| DOI | 10.1016/j.jmst.2024.01.030 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001214841800001 |
| WOS Keyword | GRAIN-BOUNDARY SEGREGATION ; MECHANICAL-PROPERTIES ; MICROSTRUCTURE ; STRENGTH ; GROWTH ; ALUMINUM ; PHASE ; BORON ; TIB ; NANOCRYSTALLINE |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Project | 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] |
| Funding Organization | 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 |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Liaw, Peter K. ; Dai, Lanhong |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/95068 |
| 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.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China; 3.Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA |
| Recommended Citation 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.Rp_Au:Liaw, Peter K., Dai, Lanhong |
| 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. |
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