不锈钢和PEEK聚合物是海水液压元件关键摩擦副常用的配对材料，不锈钢材质对不锈钢/PEEK聚合物对偶副的摩擦学性能具有重要影响。在海水环境中对AISI 316L、AISI 630以及S32750三种不锈钢进行摩擦磨损试验，对比分析了上述3种不锈钢与同种PEEK聚合物对磨时的摩擦因数和磨损率，观察试样表面磨损形貌并对磨损轮廓进行3D测量，探讨了海水环境中3种不锈钢与PEEK聚合物对磨时的摩擦磨损机制。结果表明：在海水环境中3种不锈钢的平均摩擦因数相差不大；与AISI 316L相比，S32750与AISI 630的耐磨损性较好，AISI 630的磨损率受载荷影响较小；S32750与AISI 316L的硬度与其耐磨性呈正相关性，而AISI 630中过高的碳含量会削弱其耐蚀性，进而影响它在海水中的摩擦磨损性能。文中研究为海水液压元件关键摩擦副中钢质材料的选择提供参考。
Stainless steels and PEEK composites are frequently used in key friction pair of seawater hydraulic components. The stainless steel has an important influence on tribological properties of stainless steel/PEEK composite pairing. Focused on AISI 316L, AISI 630 and S32750, tribological tests were conducted under seawater lubrication. Friction coefficient and wear rate of the three kinds of stainless steels sliding against PEEK were comparatively investigated. The tribological mechanism of the friction pairs were explored through observing and measuring the worn surfaces of samples.It is shown that the average friction coefficients of the three kinds of stainless steels have little difference; compared with AISI 316L, wear resistance of S32750 and AISI 630 is admirable, and wear rate of AISI 630 is less affected by load; wear resistance of S32750 and AISI 316L is positively correlated with their hardness, while high carbon content in AISI 630 will weaken its corrosion resistance and affect its friction and wear properties in seawater.The research provides reference for selection of stainless steel material in key friction pair of seawater hydraulic components.
. Tribological Behaviors Comparison of Several Stainless Steels under Seawater Lubrication[J]. Machine Tool & Hydraulics,2019,47(7):1-5