Tribological effects of the geometrical properties of plasma spray coatings partially melted by laser

The main wear mechanism and the interaction of the geometrical properties of the coating are discussed in this paper. The results of wear tests indicate that the best percentage of melted surface to reduce the wear rate is 46%, whereas the track angle is not found to be a major factor influencing the wear rate. The study of Coefficient of Friction (COF) reveals that low track angles have the lowest friction and that the percentage of melted surface is not a major factor influencing the COF.