Tribological Properties of Ti6Al4V Titanium Textured Surfaces Created by Laser: Effect of Dimple Density

The loss of energy due to friction is one the major problems industries are facing nowadays. Friction and wear between sliding components reduce mechanical efficiency machines have a negative impact on environment. In recent years, surface texturing has shown tremendous ability wear. Micro-features generated surfaces act as secondary reservoir for lubricants debris receptacles further abrasion. addition, boosts hydrodynamic pressure, which increases elasto-hydrodynamic lubrication regime Stribeck curve, reducing Amongst all different techniques texture surfaces, laser most popular its advantages such high accuracy, good consistency celerity compared other techniques. This study investigated effect tribological properties Ti6Al4V in contact with ceramic ball. varying dimple density was studied using ball-on-flat reciprocating tribometer under lubricated conditions. Results show that were reduced textured samples an untextured sample, important reductions highest densities. For intermediate densities, coefficient stayed low until dimples wore out from then increased value similar surface. wear-out time observed these specimens greatly influenced by density.