Operational Properties of Heterogeneous Surfaces

Abstract

Abstract. The paper is concerned with testing Cu-Mo coatings deposited over carbon steel C45, which were then eroded with a laser beam. A combination of electro-spark deposition (ESD) process and laser treatment has been developed, and tested, and improvement of certain surface properties has been demonstrated. The analysis involved measuring the macrogeometry, microhardness roughness and corrosion resistance of selected areas after laser treatment. The coatings were deposited by means of the ELFA-541 and they were laser treated with the Nd:YAG, the laser parameters being variable. The properties of heterogeneous surfaces, based on laser treated ESD, are largely dependent upon material combination systems, manipulating methods, ESD and laser parameters as well as process control.