Preparation of graphene film reinforced CoCrFeNiMn high-entropy alloy matrix composites with strength-plasticity synergy via flake powder metallurgy method
Inspired by the design principle of pearl structure, a bottom-up flake powder self-assembly arrangement strategy, flake powder metallurgy, is used to prepare graphene films (GFs) reinforced CoCrFeNiMn high-entropy alloy (HEA) matrix composites with a pearl laminated structure. Flaky HEA powder was p...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423029551 |
| _version_ | 1797301483648057344 |
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| author | Chongyang Liu Xiaosong Jiang Hongliang Sun Tianyan Liu Zixuan Wu Liu Yang |
| author_facet | Chongyang Liu Xiaosong Jiang Hongliang Sun Tianyan Liu Zixuan Wu Liu Yang |
| author_sort | Chongyang Liu |
| collection | DOAJ |
| description | Inspired by the design principle of pearl structure, a bottom-up flake powder self-assembly arrangement strategy, flake powder metallurgy, is used to prepare graphene films (GFs) reinforced CoCrFeNiMn high-entropy alloy (HEA) matrix composites with a pearl laminated structure. Flaky HEA powder was prepared by ball milling method and homogeneously mixed with Ni plated GFs. Vacuum hot-press sintering (VHPS) technique was carried out to solidify the mixed powders to obtain composites with uniform distribution of GFs(Ni) and flaky HEA. The results show that the bottom-up preparation strategy can effectively fabricate bionic laminated HEA matrix composites, and the composites have a distinct pearly laminated structure. The tensile strength of the composites with 5 vol% GFs(Ni) content reached 834.04 MPa, and the elongation reached 26.58 %. The compressive strength in parallel and perpendicular laminar directions reached 2069.66 MPa and 2418.45 MPa at 50 % strain, respectively. The laminated GFs(Ni)/HEA matrix composites possessed excellent strength and maintained good plasticity. In this study, the strengthening and toughening mechanism of the laminated GFs(Ni)/HEA matrix composites is discussed in detail, and the results show that the laminated structure and GFs(Ni) are favorable for the hardening and strengthening of the HEA matrix. |
| first_indexed | 2024-03-07T23:22:14Z |
| format | Article |
| id | doaj.art-ca550630c39248eab6c69cff22ce4b21 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-07T23:22:14Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-ca550630c39248eab6c69cff22ce4b212024-02-21T05:28:18ZengElsevierJournal of Materials Research and Technology2238-78542023-11-012776147626Preparation of graphene film reinforced CoCrFeNiMn high-entropy alloy matrix composites with strength-plasticity synergy via flake powder metallurgy methodChongyang Liu0Xiaosong Jiang1Hongliang Sun2Tianyan Liu3Zixuan Wu4Liu Yang5Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Chengdu, 610031, China; School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, ChinaKey Laboratory of Advanced Technologies of Materials, Ministry of Education, Chengdu, 610031, China; School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China; Corresponding author. Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Chengdu, 610031, China.Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Chengdu, 610031, China; School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, ChinaReactor Engineering Research Sub-institute, Nuclear Power Institute of China, Chengdu, 610005, China; Corresponding author. Reactor Engineering Research Sub-institute, Nuclear Power Institute of China, Chengdu, 610005, China.School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, United KingdomInstitute for Applied Materials (IAM-WK), Karlsruhe Institute of Technology (KIT), Karlsruhe, 76131, GermanyInspired by the design principle of pearl structure, a bottom-up flake powder self-assembly arrangement strategy, flake powder metallurgy, is used to prepare graphene films (GFs) reinforced CoCrFeNiMn high-entropy alloy (HEA) matrix composites with a pearl laminated structure. Flaky HEA powder was prepared by ball milling method and homogeneously mixed with Ni plated GFs. Vacuum hot-press sintering (VHPS) technique was carried out to solidify the mixed powders to obtain composites with uniform distribution of GFs(Ni) and flaky HEA. The results show that the bottom-up preparation strategy can effectively fabricate bionic laminated HEA matrix composites, and the composites have a distinct pearly laminated structure. The tensile strength of the composites with 5 vol% GFs(Ni) content reached 834.04 MPa, and the elongation reached 26.58 %. The compressive strength in parallel and perpendicular laminar directions reached 2069.66 MPa and 2418.45 MPa at 50 % strain, respectively. The laminated GFs(Ni)/HEA matrix composites possessed excellent strength and maintained good plasticity. In this study, the strengthening and toughening mechanism of the laminated GFs(Ni)/HEA matrix composites is discussed in detail, and the results show that the laminated structure and GFs(Ni) are favorable for the hardening and strengthening of the HEA matrix.http://www.sciencedirect.com/science/article/pii/S2238785423029551High entropy alloyLaminated structureGraphene filmStrength-plasticity synergyStrengthening mechanism |
| spellingShingle | Chongyang Liu Xiaosong Jiang Hongliang Sun Tianyan Liu Zixuan Wu Liu Yang Preparation of graphene film reinforced CoCrFeNiMn high-entropy alloy matrix composites with strength-plasticity synergy via flake powder metallurgy method Journal of Materials Research and Technology High entropy alloy Laminated structure Graphene film Strength-plasticity synergy Strengthening mechanism |
| title | Preparation of graphene film reinforced CoCrFeNiMn high-entropy alloy matrix composites with strength-plasticity synergy via flake powder metallurgy method |
| title_full | Preparation of graphene film reinforced CoCrFeNiMn high-entropy alloy matrix composites with strength-plasticity synergy via flake powder metallurgy method |
| title_fullStr | Preparation of graphene film reinforced CoCrFeNiMn high-entropy alloy matrix composites with strength-plasticity synergy via flake powder metallurgy method |
| title_full_unstemmed | Preparation of graphene film reinforced CoCrFeNiMn high-entropy alloy matrix composites with strength-plasticity synergy via flake powder metallurgy method |
| title_short | Preparation of graphene film reinforced CoCrFeNiMn high-entropy alloy matrix composites with strength-plasticity synergy via flake powder metallurgy method |
| title_sort | preparation of graphene film reinforced cocrfenimn high entropy alloy matrix composites with strength plasticity synergy via flake powder metallurgy method |
| topic | High entropy alloy Laminated structure Graphene film Strength-plasticity synergy Strengthening mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423029551 |
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