ISSN   1004-0595

CN  62-1095/O4

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杨亮, 侯玉欣, 何洪途, 张亚锋, 余家欣. 滑动速度对磷酸盐激光玻璃摩擦磨损性能的影响[J]. 摩擦学学报, 2018, 38(2): 196-203. DOI: 10.16078/j.tribology.2018.02.010
引用本文: 杨亮, 侯玉欣, 何洪途, 张亚锋, 余家欣. 滑动速度对磷酸盐激光玻璃摩擦磨损性能的影响[J]. 摩擦学学报, 2018, 38(2): 196-203. DOI: 10.16078/j.tribology.2018.02.010
YANG Liang, HOU Yuxin, HE Hongtu, ZHANG Yafeng, YU Jiaxin. Effects of Sliding Velocity on the Friction and Wear Behaviors of Phosphate Laser Glass[J]. TRIBOLOGY, 2018, 38(2): 196-203. DOI: 10.16078/j.tribology.2018.02.010
Citation: YANG Liang, HOU Yuxin, HE Hongtu, ZHANG Yafeng, YU Jiaxin. Effects of Sliding Velocity on the Friction and Wear Behaviors of Phosphate Laser Glass[J]. TRIBOLOGY, 2018, 38(2): 196-203. DOI: 10.16078/j.tribology.2018.02.010

滑动速度对磷酸盐激光玻璃摩擦磨损性能的影响

Effects of Sliding Velocity on the Friction and Wear Behaviors of Phosphate Laser Glass

  • 摘要: 通过直线往复摩擦磨损试验机,采用氧化铝陶瓷球作为对摩副,分别在低载和高载下研究了潮湿空气中滑动速度对磷酸盐激光玻璃摩擦磨损性能的影响. 结果表明:磷酸盐激光玻璃表面的摩擦系数随速度的增加而降低,这种降低在低载下表现得更为明显. 低速滑动下,玻璃上的磨屑主要聚集在磨痕的端部;高速滑动下,由于接触粗糙峰的局部温升引发黏着磨损,磨屑更容易粘附于磨痕的中心,且载荷越大界面局部温升越大,黏着磨损更为显著. 随着速度的增加,磷酸盐玻璃的磨损深度和体积减小,这是由于速度的增加导致水分子在接触界面的驻留时间变短,且高速滑动带来的温升使界面吸附水膜更难形成,因此水参与的摩擦化学磨损被削弱. 相对于高载而言,低载下滑动速度对材料去除的影响更为明显,这是由于低载磨损时相对较低的摩擦温升更有利于界面水膜的稳定形成,因而水参与的摩擦化学反应对材料去除的贡献更大.

     

    Abstract: The effects of sliding velocity on the friction and wear behaviors of phosphate laser glass were investigated in two loads using a reciprocating sliding tribometer in humid air. The experimental results show that the friction coefficient of phosphate laser glass decreased with increase in sliding velocity, and the decrease was more obvious in low load condition. Under low velocity sliding, the wear debris of phosphate laser glass was found to accumulate mainly at the end of the wear track. But under high velocity sliding, the localized temperature rise of contacting asperities caused the adhesive wear, as a result, the wear debris adhered to the center of the wear track more easily. The adhesive wear was more severe in high load condition due to the higher localized temperature rise at frictional interface. With increase in sliding velocity, the wear volume of phosphate laser glass decreased. This is attributed to the inadequate adsorbed water film at the interface at higher sliding velocity due to the short residence time of the water molecules at the contact interface, as well as the higher temperature rise. As a result, the tribochemical wear induced by water is weakened under high velocity. Compared to high load condition, the effect of sliding velocity on the material removal of phosphate glass was more obvious in low load condition. The relatively lower temperature rise under low load wear was more conducive to the stable formation of the interface water film, therefore, the tribochemical reaction played an important role in the material removal of phosphate glass in low load condition.

     

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