Scuffing Resistance of Laser Textured Surfaces

In this study, the scuffing resistance of laser-textured (LT) H13 samples was investigated. Furthermore, thin copper and nanocomposite films were produced on some of the textured samples, which were later subjected to scuffing tests in a reciprocating wear test machine. Test results indicated that Cu and nanocomposite coatings can substantially enhance the scuffing resistance of H13 steel samples. The best scuffing resistance and the lowest friction coefficient were observed for the nanocomposite coating on as-received H13 samples. This coating could not be scuffed even at 1780 N normal load which was the maximum load available in this test machine. Furthermore, the presence of Cu within the dimples considerably improved the scuffing resistance of LT surfaces.