Investigation of the Wettability Properties of Different Textured Lead/Lead-Free Bronze Coatings

Hydraulic components are often subjected to sliding contacts under starved or mixed lubrication. The condition of lubrication occurs during the start-up phase hydraulic machines at low working temperature, causing friction and wear such as cylinder block valve plate. aim this paper was evaluate hydrophobicity oleophilic behavior lead/lead-free bronze coatings different texture conditions obtained by varying diameter density dimples. wettability tests were performed using sessile drop with oil water liquids. dimple parameters analyzed confocal microscopy, while XRF analyses composition coatings. Based on measurements water, it possible assess that porous surface acted reservoirs could prolong life lubricating layer, may have resulted in a superior resistance. Furthermore, relevant highlighted, suggesting texturing promoted water-repellent barrier action surface. experimental results showed discrepancy properties raised when lead coating. These coupled hydrophobic behaviors play beneficial role sustaining durability layer continuous water-droplet impact.