This work emphasizes on assessing the influence of surface texture directionality and roughness on the lubricant wettability, flowability and entrapment capability of engineering surfaces. Experimental results using Contact Angle Goniometer show that the wettability increases with an increase in roughness in the higher roughness range of ~Ra 886 to 236 nm and with a decrease in roughness in the lower range of ~Ra 151 to 79 nm. The critical sliding angle and critical contact angle hysteresis were obtained at lower sliding-angles when the directionality in texture was parallel to the sliding direction. In near Wenzel mixed-wetting conditions, surfaces having individual entrapment sites (8G texture) revealed better lubricant entrapment capability with up to ~22% entrapment.

这项工作着重于评估表面纹理方向性和粗糙度对工程表面润滑剂润湿性，流动性和截留能力的影响。使用接触角测角仪的实验结果表明，在〜Ra 886至236 nm的较高粗糙度范围内，随着粗糙度的增加，润湿性增加，而在〜Ra 151至79 nm的较低范围内，粗糙度减小。当纹理的方向性平行于滑动方向时，在较低的滑动角处获得了临界滑动角和临界接触角磁滞。在接近Wenzel混合润湿的条件下，具有单个陷落部位（8G织构）的表面表现出更好的润滑剂陷落能力，陷落率高达〜22％。