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兵工学报 ›› 2011, Vol. 32 ›› Issue (2): 192-198.

• 论文 • 上一篇    下一篇

(WTi)C/石墨/镍基合金复合涂层摩擦磨损性能研究

蔡滨, 谭业发, 蒋国良, 徐婷, 谭华, 周春华   

  1. (解放军理工大学 工程兵工程学院, 江苏 南京 210007)
  • 收稿日期:2010-05-21 修回日期:2010-05-21 上线日期:2014-05-04
  • 通讯作者: 蔡滨 E-mail:benjamincb1985@163.com
  • 作者简介:蔡滨(1985—),男,博士研究生

Research on Friction and Wear Property of (WTi)C/Graphite/Ni-Base Alloy Composite Coatings

CAI Bin, TAN Ye-fa, JIANG Guo-liang,XU Ting, TAN Hua, ZHOU Chun-hua   

  1. (Engineering Institute of Engineering Corps, PLA University of Science & Technology, Nanjing 210007, Jiangsu, China)
  • Received:2010-05-21 Revised:2010-05-21 Online:2014-05-04
  • Contact: CAI Bin E-mail:benjamincb1985@163.com

摘要: 为了获得既具有自润滑减摩特性又有高耐磨性能的金属摩擦构件表面,提高高接触应力下金为了获得既具有自润滑减摩特性又有高耐磨性能的金属摩擦构件表面,提高高接触应力下金属摩擦副的使用寿命和可靠性,运用等离子喷涂技术在45#钢表面制备了(WTi)C/石墨/镍基合金复合涂层。研究了室温干摩擦条件下复合涂层的摩擦磨损性能,并用SEM和EDX对磨损表面进行了测试分析。结果表明:复合涂层与Si3N4和GCr15对摩时,摩擦系数分别较纯镍基合金涂层降低了35%和38%,耐磨性分别是后者的3倍和3.5倍;与Si3N4对摩时,复合涂层的磨损机理主要是微观切削、疲劳剥落和硬质相脱落。与GCr15对摩时,其磨损机理主要为粘着磨损、多次塑变磨损和层脱剥离。

关键词: 复合材料, 等离子喷涂, (W, Ti)C, 石墨, 镍基合金, 减摩, 耐磨

Abstract: In order to obtain the self-lubrication and anti-wear metal surfaces and improve the service life and reliability of metal friction couples under condition of high contact stress, the composite coatings composed of Ni-base alloy, (W,Ti)C and graphite particles are prepared on the surface of No. 45 steel by plasma spraying process. The friction and wear properties of the coatings are investigated under the conditions of dry friction conditions at room temperature, and the worn surfaces of the composite coatings are analyzed by SEM and EDX. The results show that the friction coefficients of the composite coating are 35% and 38% lower than those of the Ni-base alloy coatings when it rubs againdt Si3N4 and GCr15, and the wear resistance of the former is 3 and 3.5 times

Key words: composite materials, plasma spraying, (W,Ti)C, graphite, Ni-base alloy, anti-friction, anti-wear

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