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石墨烯改性自潤滑耐磨涂層的組織與耐磨機理研究
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北京航空材料研究院 航空材料先進腐蝕與防護航空科技重點實驗室,北京航空材料研究院 航空材料先進腐蝕與防護航空科技重點實驗室,北京航空材料研究院 航空材料先進腐蝕與防護航空科技重點實驗室,北京航空材料研究院 航空材料先進腐蝕與防護航空科技重點實驗室,裝甲兵工程學(xué)院 裝備再制造技術(shù)國防科技重點實驗室,裝甲兵工程學(xué)院 裝備再制造技術(shù)國防科技重點實驗室

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國家自然科學(xué)基金資助(51605455)；國家自然科學(xué)基金優(yōu)秀青年(51222510)；國家自然科學(xué)基金面上項目(51675533)


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,,

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

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    摘要:

    為了降低WC-Co涂層的摩擦系數(shù),采用濕法球磨工藝實現(xiàn)了氧化石墨烯和WC-Co噴涂粉末的均勻混合,基于爆炸噴涂技術(shù)制備了氧化石墨烯改性WC-Co涂層。借助XRD、SEM、EDS等手段分析了涂層的氧化石墨烯存在、組織結(jié)構(gòu)形貌、化學(xué)成分組成。采用顯微硬度計、萬能拉伸機及UMT-2摩擦磨損試驗機等儀器研究了涂層的力學(xué)及摩擦磨損性能。結(jié)果表明：氧化石墨烯改性后涂層內(nèi)均勻分布有片層狀氧化石墨烯,涂層組織致密、均勻,結(jié)合強度約82MPa,顯微硬度為1024HV0.3,氧化石墨烯改性后涂層相比WC-Co涂層摩擦系數(shù)降低了30%,氧化石墨烯的添加提高了WC-Co涂層的抗磨、減磨性能。

    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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田浩亮,郭孟秋,王長亮,湯智慧,魏世丞,徐濱士.石墨烯改性自潤滑耐磨涂層的組織與耐磨機理研究[J].稀有金屬材料與工程,2017,46(7):1881~1886.[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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  • 收稿日期:2016-10-25
  • 最后修改日期:2016-12-15
  • 錄用日期:2017-01-06
  • 在線發(fā)布日期: 2017-11-14
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