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| Ultra-strong heavy-drawn eutectic high entropy alloy wire | |
Chen JX(陈金玺)1,2 ; Li T(李统)1,2; Chen Y(陈艳)1,2; Cao FH(曹富华)1,2; Wang HY(汪海英)1,2; Dai LH(戴兰宏)1,2,3
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| Corresponding Author | Chen, Yan(lhdai@lnm.imech.ac.cn) ; Dai, Lan-Hong(lhdai@lnm.imech.ac.cn) |
| Source Publication | ACTA MATERIALIA (IF:7.293[JCR-2018],7.273[5-Year]) |
| 2023-01-15 | |
| Volume | 243Pages:14 |
| ISSN | 1359-6454 |
| Abstract | Metallic wires with high strength-ductility at both room and cryogenic temperatures are always pur-sued for engineering applications. However, traditional metallic wires are tortured inevitably by strength -ductility trade-off dilemma. In this work, a gradient heterogeneous lamella structure, characterized with hard gradient-distributed B2 lamellae embedded in soft FCC lamellae matrix, is introduced into AlCoCrFeNi2.1 eutectic high entropy alloy (EHEA) wire by well-designed multiple-stage heavy-drawn and heat treatment processes, which achieves an outstanding strength-ductility synergy. This EHEA wire ex-hibits not only high tensile strength of 1.85 GPa and sufficient uniform elongation of-12% at room tem-perature, but also ultra-high tensile strength of 2.52 GPa and even slightly elevated uniform elongation of-14% at cryogenic temperature. In-depth microstructure characterization indicates that the gradient heterogeneous lamella structure facilitates a radial gradient distribution of geometrically necessary dis-location (GND) during tension, i.e., the GND density decreases gradually from the surface region to the central region of EHEA wire, which induces pronounced strain gradient strengthening effect and thus greatly benefits the mechanical properties. Intriguingly, at cryogenic temperature, dense cross-slip which gives rise to intensively dynamic microstructure refinement is firstly observed in the B2 phase of EHEA wire. The activation of cross-slip provides sufficient ductility while inducing evidently dynamic Hall-Petch effect, becoming the most effective deformation mechanism contributing to the unprecedented cryogenic tension properties. This work sheds light on designing ultra-strong EHEA wire and other advanced metal-lic wires.(c) 2022 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| Keyword | Eutectic high entropy alloy wire Mechanical properties Gradient heterogeneous lamella structure Cross-slip |
| DOI | 10.1016/j.actamat.2022.118515 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000899583800003 |
| WOS Keyword | HIGH-DUCTILITY ; HIGH-STRENGTH ; MECHANICAL-PROPERTIES ; CRYOGENIC STRENGTH ; TENSILE PROPERTIES ; BEHAVIOR ; STEEL ; DISLOCATION ; PLASTICITY ; MICROSTRUCTURE |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Project | NSFC[11790292] ; NSFC[11972346] ; NSFC[12102433] ; NSFC[U2141204] ; National Key Research and Development Program of China[2017YFB0702003] ; Strategic Priority Research Program[XDB22040302] ; Strategic Priority Research Program[XDB22040303] ; Key Research Program of Frontier Sciences[QYZDJSSW-JSC011] ; Science Challenge Project[TZ2016001] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-2-3] ; opening project of State Key Laboratory of Explosion Science and Technology[KFJJ21-01Z] ; NSFC Basic Science Center Program for Multi-scale Problems in Nonlinear Mechanics[11988102] |
| Funding Organization | NSFC ; National Key Research and Development Program of China ; 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 ; NSFC Basic Science Center Program for Multi-scale Problems in Nonlinear Mechanics |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Chen, Yan ; Dai, Lan-Hong |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/91309 |
| 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 Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Chen JX,Li T,Chen Y,et al. Ultra-strong heavy-drawn eutectic high entropy alloy wire[J]. ACTA MATERIALIA,2023,243:14.Rp_Au:Chen, Yan, Dai, Lan-Hong |
| APA | 陈金玺,李统,陈艳,曹富华,汪海英,&戴兰宏.(2023).Ultra-strong heavy-drawn eutectic high entropy alloy wire.ACTA MATERIALIA,243,14. |
| MLA | 陈金玺,et al."Ultra-strong heavy-drawn eutectic high entropy alloy wire".ACTA MATERIALIA 243(2023):14. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2023Fa026.pdf（12388KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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