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石墨密封材料高温摩擦磨损行为及预测

闫玉涛 李雪娟 胡广阳 胡添琪 孙志礼

闫玉涛, 李雪娟, 胡广阳, 胡添琪, 孙志礼. 石墨密封材料高温摩擦磨损行为及预测[J]. 航空动力学报, 2014, 29(2): 314-320. doi: 10.13224/j.cnki.jasp.2014.02.010
引用本文: 闫玉涛, 李雪娟, 胡广阳, 胡添琪, 孙志礼. 石墨密封材料高温摩擦磨损行为及预测[J]. 航空动力学报, 2014, 29(2): 314-320. doi: 10.13224/j.cnki.jasp.2014.02.010
YAN Yu-tao, LI Xue-juan, HU Guang-yang, HU Tian-qi, SUN Zhi-li. Friction/wear behaviors and predication of graphite seal material under high temperature[J]. Journal of Aerospace Power, 2014, 29(2): 314-320. doi: 10.13224/j.cnki.jasp.2014.02.010
Citation: YAN Yu-tao, LI Xue-juan, HU Guang-yang, HU Tian-qi, SUN Zhi-li. Friction/wear behaviors and predication of graphite seal material under high temperature[J]. Journal of Aerospace Power, 2014, 29(2): 314-320. doi: 10.13224/j.cnki.jasp.2014.02.010

石墨密封材料高温摩擦磨损行为及预测

doi: 10.13224/j.cnki.jasp.2014.02.010
基金项目: 航空科学基金(20100450001)

Friction/wear behaviors and predication of graphite seal material under high temperature

  • 摘要: 利用HT-1000型高温摩擦磨损试验机研究了石墨M210密封材料高温下摩擦磨损性能,采用扫描电子显微镜(SEM)观察分析了磨损表面形貌.基于试验数据,通过灰色理论GM(1,1)建立了摩擦因数和磨损率预测模型.结果表明:石墨M210密封材料摩擦因数呈先增大再减小,而后趋于一稳定值,试验温度为450℃时,摩擦因数最小;磨损率随着试验温度升高而增大.试验温度在低于300℃,磨损表面具有明显的黏着、撕裂和无序的塑流动痕迹,高于400℃时,塑流动痕迹具有明显的方向性,出现了剥落和断裂痕迹.温度较低时,石墨材料表面主要是水汽物理吸附膜起润滑作用,随着试验温度升高,由物理吸附膜润滑逐渐转向反应膜润滑.基于试验数据建立了精度等级均为1级的摩擦因数和磨损率的预测模型.

     

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出版历程
  • 收稿日期:  2012-12-06
  • 刊出日期:  2014-02-28

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