Presentation Overview
A coating is a layer of material deposited onto a substrate to enhance the surface properties for corrosion and wear protection. Factors affecting the choice of a coating include service environment, life expectancy, substrate material compatibility, component shape and size, and cost. There is a wide range of coating processes for depositing many different types of material at thicknesses ranging from just a few microns, up to several millimetres. Physical Vapor Deposition or PVD surface treatment technology can be used to achieve high adhesion and hardness and in recent years this technology has been increasingly used for various applications.