Unveiling microstructural origins of the balanced strength–ductility combination in eutectic high-entropy alloys at cryogenic temperatures
Eutectic high-entropy alloys (EHEAs) feature attractive strength–ductility balance at both ambient and cryogenic temperatures. Nevertheless, microstructural origins underpinning these balanced mechanical properties remain elusive. Here the deformation mechanisms of a recently-reported Al19Co20Fe20Ni...
| Main Authors: | , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2022-09-01
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| Series: | Materials Research Letters |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/21663831.2022.2078169 |
| _version_ | 1811254317961707520 |
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| author | Yi Li Peijian Shi Mingyang Wang Yinpan Yang Yan Wang Yiqi Li Yuebo Wen Weili Ren Na Min Yan Chen Yifeng Guo Zhe Shen Tianxiang Zheng Ningning Liang Wenjun Lu Peter K. Liaw Yunbo Zhong Yuntian Zhu |
| author_facet | Yi Li Peijian Shi Mingyang Wang Yinpan Yang Yan Wang Yiqi Li Yuebo Wen Weili Ren Na Min Yan Chen Yifeng Guo Zhe Shen Tianxiang Zheng Ningning Liang Wenjun Lu Peter K. Liaw Yunbo Zhong Yuntian Zhu |
| author_sort | Yi Li |
| collection | DOAJ |
| description | Eutectic high-entropy alloys (EHEAs) feature attractive strength–ductility balance at both ambient and cryogenic temperatures. Nevertheless, microstructural origins underpinning these balanced mechanical properties remain elusive. Here the deformation mechanisms of a recently-reported Al19Co20Fe20Ni41 EHEA were comparatively investigated at 298 and 77 K, which revealed a high frequency and density of dislocation multi-slip scenario in the soft eutectic lamellae and the corresponding compatible co-deformation in the adjacent hard lamellae that collectively endowed strong hetero-deformation-induced (HDI) hardening and excellent forest-dislocation hardening. Therefore, better ductility and tensile strength, in comparison to the other widely-studied EHEA system, could be sustained even at liquid-nitrogen temperatures. |
| first_indexed | 2024-04-12T17:05:32Z |
| format | Article |
| id | doaj.art-abc8f6ed08394be5bf57131c973bb352 |
| institution | Directory Open Access Journal |
| issn | 2166-3831 |
| language | English |
| last_indexed | 2024-04-12T17:05:32Z |
| publishDate | 2022-09-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj.art-abc8f6ed08394be5bf57131c973bb3522022-12-22T03:23:57ZengTaylor & Francis GroupMaterials Research Letters2166-38312022-09-0110960261010.1080/21663831.2022.2078169Unveiling microstructural origins of the balanced strength–ductility combination in eutectic high-entropy alloys at cryogenic temperaturesYi Li0Peijian Shi1Mingyang Wang2Yinpan Yang3Yan Wang4Yiqi Li5Yuebo Wen6Weili Ren7Na Min8Yan Chen9Yifeng Guo10Zhe Shen11Tianxiang Zheng12Ningning Liang13Wenjun Lu14Peter K. Liaw15Yunbo Zhong16Yuntian Zhu17State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai, People’s Republic of ChinaState Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai, People’s Republic of ChinaState Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai, People’s Republic of ChinaState Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai, People’s Republic of ChinaState Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai, People’s Republic of ChinaState Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai, People’s Republic of ChinaState Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai, People’s Republic of ChinaState Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai, People’s Republic of ChinaLaboratory for Microstructures, Shanghai University, Shanghai, People’s Republic of ChinaCarl Zeiss (Shanghai) Co., Ltd, Shanghai, People’s Republic of ChinaState Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai, People’s Republic of ChinaState Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai, People’s Republic of ChinaState Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai, People’s Republic of ChinaSchool of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, People’s Republic of ChinaDepartment of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, People’s Republic of ChinaDepartment of Materials Science and Engineering, The University of Tennessee, Knoxville, TN, USAState Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai, People’s Republic of ChinaDepartment of Materials Science and Engineering, Hong Kong Institute for Advanced Study, College of Science and Engineering, City University of Hong Kong, Hong Kong, People’s Republic of ChinaEutectic high-entropy alloys (EHEAs) feature attractive strength–ductility balance at both ambient and cryogenic temperatures. Nevertheless, microstructural origins underpinning these balanced mechanical properties remain elusive. Here the deformation mechanisms of a recently-reported Al19Co20Fe20Ni41 EHEA were comparatively investigated at 298 and 77 K, which revealed a high frequency and density of dislocation multi-slip scenario in the soft eutectic lamellae and the corresponding compatible co-deformation in the adjacent hard lamellae that collectively endowed strong hetero-deformation-induced (HDI) hardening and excellent forest-dislocation hardening. Therefore, better ductility and tensile strength, in comparison to the other widely-studied EHEA system, could be sustained even at liquid-nitrogen temperatures.https://www.tandfonline.com/doi/10.1080/21663831.2022.2078169Eutectic high-entropy alloysmechanical propertiesmulti-slip scenariocompatible co-deformationHDI hardening |
| spellingShingle | Yi Li Peijian Shi Mingyang Wang Yinpan Yang Yan Wang Yiqi Li Yuebo Wen Weili Ren Na Min Yan Chen Yifeng Guo Zhe Shen Tianxiang Zheng Ningning Liang Wenjun Lu Peter K. Liaw Yunbo Zhong Yuntian Zhu Unveiling microstructural origins of the balanced strength–ductility combination in eutectic high-entropy alloys at cryogenic temperatures Materials Research Letters Eutectic high-entropy alloys mechanical properties multi-slip scenario compatible co-deformation HDI hardening |
| title | Unveiling microstructural origins of the balanced strength–ductility combination in eutectic high-entropy alloys at cryogenic temperatures |
| title_full | Unveiling microstructural origins of the balanced strength–ductility combination in eutectic high-entropy alloys at cryogenic temperatures |
| title_fullStr | Unveiling microstructural origins of the balanced strength–ductility combination in eutectic high-entropy alloys at cryogenic temperatures |
| title_full_unstemmed | Unveiling microstructural origins of the balanced strength–ductility combination in eutectic high-entropy alloys at cryogenic temperatures |
| title_short | Unveiling microstructural origins of the balanced strength–ductility combination in eutectic high-entropy alloys at cryogenic temperatures |
| title_sort | unveiling microstructural origins of the balanced strength ductility combination in eutectic high entropy alloys at cryogenic temperatures |
| topic | Eutectic high-entropy alloys mechanical properties multi-slip scenario compatible co-deformation HDI hardening |
| url | https://www.tandfonline.com/doi/10.1080/21663831.2022.2078169 |
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