Long Risheng, Wang Haiming, Hou Jincheng, Shang Qingyu, Zhang Yimin, Zong Lin, Zhang Zhijun
Equipment Reliability Institute, Shenyang University of Chemical Technology, Shenyang 110142, China.
Liaoning Provincial Key Laboratory of Efficient Chemical Mixing Technology, Shenyang 110142, China.
Polymers (Basel). 2025 Feb 27;17(5):645. doi: 10.3390/polym17050645.
To compare them with PTFE-40# steel tribo-pairs, the tribological properties of textured PEEK-40# (AISI 1040) steel friction pairs were researched under full-film lubrication conditions by manufacturing micro-dimples with different dimensions on the contact surfaces of 1040 steel discs using laser surface texturing (LST). After repeated tribological tests, the coefficients of friction (COFs), wear losses, and wear morphologies of the PEEK-1040 steel friction pairs were measured and analyzed. The results show that micro-dimples do not significantly reduce the average COFs of PEEK-1040 steel friction pairs when lubricated with a sufficient amount of hydraulic oil, but they do reduce the wear losses of most groups. When the dimple diameter was 250 μm, the dimple depth was 5 μm, the area ratio was 6.6%, and the mass loss of the 1040 steel disc was reduced by 90% compared to the smooth reference. In comparison to the behavior of the PTFE-1040 steel tribo-pairs, PEEK-1040 steel friction pairs can provide better tribological performance, whether smooth or dimple-textured. This study offers important insights for the design of seals in machinery.
为了将它们与聚四氟乙烯-40#钢摩擦副进行比较，通过激光表面织构化（LST）在1040钢圆盘的接触表面制造不同尺寸的微凹坑，研究了织构化聚醚醚酮-40#（AISI 1040）钢摩擦副在全膜润滑条件下的摩擦学性能。经过反复摩擦学测试，对聚醚醚酮-1040钢摩擦副的摩擦系数（COF）、磨损损失和磨损形貌进行了测量和分析。结果表明，当用足量的液压油润滑时，微凹坑不会显著降低聚醚醚酮-1040钢摩擦副的平均摩擦系数，但会降低大多数组的磨损损失。当凹坑直径为250μm、凹坑深度为5μm、面积比为6.6%时，1040钢圆盘的质量损失与光滑参考相比减少了90%。与聚四氟乙烯-1040钢摩擦副的性能相比，聚醚醚酮-1040钢摩擦副无论是光滑的还是有凹坑织构的，都能提供更好的摩擦学性能。本研究为机械密封设计提供了重要的见解。
