Study on tribological performance of groove-textured bioimplants

Surface texturing is an effective approach to improve the tribological performance of artificial joints. In this paper, the frictional performance of Ultra-High-Molecular-Weight-Polyethylene and Cobalt–Chromium–Molybdenum material combination with micro grooves fabricated on the metal bearings is studied. The results show that grooves with width of 500 μm, depth of 4.5 μm and pitch distance of 3 mm could provide the optimized tribological...