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魏广宁,高二龙,丁振国,李雪松.石墨烯颗粒对Ni-Co-石墨烯复合镀层的表面性能影响[J].稀有金属材料与工程(英文),2021,50(5):1735~1742.[Wei Guangning,Gao Erlong,Ding Zhenguo and Li Xuesong.Effect of graphene particles on the surface properties of ni-co-graphene composite coatings[J].Rare Metal Materials and Engineering,2021,50(5):1735~1742.]
Effect of graphene particles on the surface properties of ni-co-graphene composite coatings
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Received:May 12, 2020  
DOI:
Key words: Graphene  Composite electrodeposition  Ni-Co alloy coating
Foundation item:吉林省科技厅重点科技研发项目(项目号20180201082GX),吉林省产业技术研究与开发专项(项目号2019C046-8)
Author NameAffiliation
Wei Guangning,Gao Erlong,Ding Zhenguo and Li Xuesong  
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Abstract:
      In order to obtain more excellent and comprehensive composite coatings, Ni-Co-graphene composite coatings of different graphene particle sizes were prepared by using composite electrodeposition technology, and Ni-Co alloy coatings were prepared. The surface morphology, phase structure, microhardness, wear resistance and corrosion resistance of the coating were tested. The results showed that graphene was well embedded in the coating matrix during electrodeposition, and the presence of graphene did not change the crystal structure of the coating matrix. The addition of graphene increased the microhardness of the composite coating up to 805HV. The friction coefficient of composite coating is reduced, and the adhesive wear area is reduced to some extent. The self-corrosion current density of composite coating can be reduced to 1.0905×10-5A/cm2, which is lower than that of Ni-Co alloy coating. It was shown that the addition of graphene enhanced the hardness, wear resistance and corrosion resistance of the composite coating.