To enhance the friction and wear resistance of GCr15/PTFE sliding contact surfaces, the synergistic lubrication effect of micro-textures and solid lubricants were studied in this paper. Micro-textures were processed on GCr15 samples by Nd:YAG laser, which were filled with MoS₂. Tribological performance tests were carried out on a Rtec-MFT 5000 tester. Tribological properties were optimal with the textures density of 20% and depth of 9 µm. A continuous composite solid lubricating film was formed by PTFE and MoS₂. As load increases, friction coefficient of the sample shows a rapid decline and then stabilizes. With the increase of reciprocating frequency, friction curve of the sample shows a trend of slight fluctuation. When frequency is 2.7 Hz, friction coefficient is the lowest. Tribological properties of PTFE/GCr15 contact surfaces could be significantly optimized by micro-textures and MoS₂, which performs favorable prospect of engineering application such as guide rails, bearings, machinery seal, etc.

为了提高GCr15 / PTFE滑动接触表面的摩擦磨损性能，本文研究了微织构和固体润滑剂的协同润滑作用。Nd：YAG激光在GCr15样品上处理了微纹理，并填充了MoS ₂。摩擦性能测试是在Rtec-MFT 5000测试仪上进行的。摩擦学性能最佳，织构密度为20％，深度为9 µm。由PTFE和MoS ₂形成连续的复合固体润滑膜。随着载荷的增加，样品的摩擦系数会迅速下降，然后趋于稳定。随着往复频率的增加，样品的摩擦曲线呈现出轻微波动的趋势。当频率为2.7 Hz时，摩擦系数最低。微观结构和MoS ₂可以显着优化PTFE / GCr15接触表面的摩擦学性能，为导轨，轴承，机械密封等工程应用提供了良好的前景。