Study on the surface coating texturing of alloys and its friction and wear properties

Laser texturing technology utilizes high-energy laser beams to generate specific microstructures on the material surfaces, improving their friction and wear properties. This study investigates the effects of nanosecond pulsed laser texturing on the surface characteristics of chromium-plated alloys with a focus on changes in processing dimensions and surface morphology. A systematic experimental analysis was conducted to determine the optimal range of process parameters. This study primarily examines the influence of laser power, scanning speed, repetition frequency, and pulse width on the friction and wear properties of materials. The results demonstrate that surface texturing significantly improves the wear resistance. When the laser energy per unit area is high and the pulses are more concentrated, the wear resistance of the textured surface increases. Conversely, lower laser energy and more dispersed pulses result in reduced wear resistance. Optimized surface texturing parameters enhance wear resistance and minimize coating detachment during wear, providing valuable insights for improving the durability of chromium-plated alloys in high-friction applications.