Superior wear performance of CoCrNi matrix composite reinforced with quasi-continuously networked graphene nanosheets and in-situ carbide
The biological materials evolved in nature generally exhibit interpenetrating network structures, which may offer useful inspiration for the architectural design of wear-resistant composites. Here, a strategy for designing self-lubricating medium entropy alloy (MEA) composites with high strength and...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2025-07-01
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| Series: | Friction |
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| Online Access: | https://www.sciopen.com/article/10.26599/FRICT.2025.9441001 |
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| _version_ | 1849242734804598784 |
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| author | Wenting Ye Mingda Xie Qing Zhou Biao Chen Yixue Li Lei Jia Haifeng Wang Weimin Liu |
| author_facet | Wenting Ye Mingda Xie Qing Zhou Biao Chen Yixue Li Lei Jia Haifeng Wang Weimin Liu |
| author_sort | Wenting Ye |
| collection | DOAJ |
| description | The biological materials evolved in nature generally exhibit interpenetrating network structures, which may offer useful inspiration for the architectural design of wear-resistant composites. Here, a strategy for designing self-lubricating medium entropy alloy (MEA) composites with high strength and excellent anti-wear performance was proposed through quasi-continuously networked in-situ carbides and graphene nanosheets. The discontinuous coating of graphene on the MEA powder surface inhibits continuous metallurgy bonding of the MEA powders during sintering, generating the typical quasi-continuously networked architecture. A good combination of mechanical properties with high fracture strength over 2 GPa and large compressive plasticity over 30% benefits from metallurgy bonding that prevents crack initiation and extension. The wear rate of an order of 10−6 m3·N−1·m−1 ascribing to an amorphous-crystalline nanocomposite surface, tribo-film induced by graphene, as well as the gradient worn subsurface during friction was achieved by the MEA composite, which is an order of magnitude lower than the unreinforced MEA matrix. |
| format | Article |
| id | doaj-art-4407bcd2de9e47f1a8e763869da5674c |
| institution | Kabale University |
| issn | 2223-7690 2223-7704 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Friction |
| spelling | doaj-art-4407bcd2de9e47f1a8e763869da5674c2025-08-20T03:59:44ZengTsinghua University PressFriction2223-76902223-77042025-07-01138944100110.26599/FRICT.2025.9441001Superior wear performance of CoCrNi matrix composite reinforced with quasi-continuously networked graphene nanosheets and in-situ carbideWenting Ye0Mingda Xie1Qing Zhou2Biao Chen3Yixue Li4Lei Jia5Haifeng Wang6Weimin Liu7Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518063, ChinaResearch & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518063, ChinaResearch & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518063, ChinaResearch & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518063, ChinaAnalytical & Testing Center, Northwestern Polytechnical University, Xi’an 710072, ChinaSchool of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, ChinaResearch & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518063, ChinaState Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaThe biological materials evolved in nature generally exhibit interpenetrating network structures, which may offer useful inspiration for the architectural design of wear-resistant composites. Here, a strategy for designing self-lubricating medium entropy alloy (MEA) composites with high strength and excellent anti-wear performance was proposed through quasi-continuously networked in-situ carbides and graphene nanosheets. The discontinuous coating of graphene on the MEA powder surface inhibits continuous metallurgy bonding of the MEA powders during sintering, generating the typical quasi-continuously networked architecture. A good combination of mechanical properties with high fracture strength over 2 GPa and large compressive plasticity over 30% benefits from metallurgy bonding that prevents crack initiation and extension. The wear rate of an order of 10−6 m3·N−1·m−1 ascribing to an amorphous-crystalline nanocomposite surface, tribo-film induced by graphene, as well as the gradient worn subsurface during friction was achieved by the MEA composite, which is an order of magnitude lower than the unreinforced MEA matrix.https://www.sciopen.com/article/10.26599/FRICT.2025.9441001in-situ carbidetribological behaviormedium entropy alloy matrix compositegraphene |
| spellingShingle | Wenting Ye Mingda Xie Qing Zhou Biao Chen Yixue Li Lei Jia Haifeng Wang Weimin Liu Superior wear performance of CoCrNi matrix composite reinforced with quasi-continuously networked graphene nanosheets and in-situ carbide Friction in-situ carbide tribological behavior medium entropy alloy matrix composite graphene |
| title | Superior wear performance of CoCrNi matrix composite reinforced with quasi-continuously networked graphene nanosheets and in-situ carbide |
| title_full | Superior wear performance of CoCrNi matrix composite reinforced with quasi-continuously networked graphene nanosheets and in-situ carbide |
| title_fullStr | Superior wear performance of CoCrNi matrix composite reinforced with quasi-continuously networked graphene nanosheets and in-situ carbide |
| title_full_unstemmed | Superior wear performance of CoCrNi matrix composite reinforced with quasi-continuously networked graphene nanosheets and in-situ carbide |
| title_short | Superior wear performance of CoCrNi matrix composite reinforced with quasi-continuously networked graphene nanosheets and in-situ carbide |
| title_sort | superior wear performance of cocrni matrix composite reinforced with quasi continuously networked graphene nanosheets and in situ carbide |
| topic | in-situ carbide tribological behavior medium entropy alloy matrix composite graphene |
| url | https://www.sciopen.com/article/10.26599/FRICT.2025.9441001 |
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