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Study on the Microstructure and Wear Behavior of Graphene Modified Self-lubricated Wear Resistance Coating
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Aviation Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material Beijing,Beijing Institute of Aeronautical Materials,Aviation Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material Beijing,Beijing Institute of Aeronautical Materials,Aviation Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material Beijing,Beijing Institute of Aeronautical Materials,Aviation Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material Beijing,Beijing Institute of Aeronautical Materials,,

Fund Project:

The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)

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    Abstract:

    Aiming to reduce the friction coefficient of WC-Co coating, the GO and WC-Co spraying powder was uniformly mixed by wet milling. The grapheme oxide modification WC-Co coating was prepared by detonation gun spraying. With the help of XRD, SEM and EDS instrument, the existence of graphene, microstructure and chemical composition of the coating were analyzed. Mechanical and wear properties of the coating were studied by means of micro-hardness tester, universal tensile and wear testing machine. The results show that layer graphene film was existed in the graphene modified coating. The coating has the dense and uniform structure. The adhesive strength and micro-hardness of the coating was 82MPa and 1024 HV0.3. The friction coefficient of WC-Co coating was decreased by 30% compared with the graphene modified coating. The addition of graphene was highly improved the wear resistance of the WC-Co coating.

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[Tian Haoliang, Guo Mengqiu, Wang Changliang, Tang Zhihui, Wei Shicheng, Xu Binshi. Study on the Microstructure and Wear Behavior of Graphene Modified Self-lubricated Wear Resistance Coating[J]. Rare Metal Materials and Engineering,2017,46(7):1881~1886.]
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History
  • Received:October 25,2016
  • Revised:December 15,2016
  • Adopted:January 06,2017
  • Online: November 14,2017

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