FRETTING FATIGUE WEAR BEHAVIOR OF Cu-aL COATING ON TITANIUM ALLOY SUBSTRATE

摘要

The fretting wear behavior of Cu-Al coating was investigated with and without fatigue load under the dry and wet (lubricated) contact conditions. The Cu-Al coating was plasma deposited on titanium alloy, Ti-6A1-4V. Wet contact condition reduced frictional force during cycling as evidenced by the lower tangential force. Wear analysis using the accumulated dissipated energy approach did not show any effect of contact surface condition. In other words, the relationship between the accumulated dissipated energy and wear volume showed a linear relationship, and it was independent of loading and contact surface conditions as well as of the fretting regime.