Mechanical properties and tribological behavior at micro and macro-scale of WC/WCN/W hierarchical multilayer coatings

摘要: Abstract It is known that a hierarchical configuration helps to improve adhesion the substrate and reduce effects generate sharp change in conventional multilayer coating, like interface stresses. We present study of mechanical properties tribological behavior at micro macro scale WC/WCN/W coatings deposited by magnetron sputtering, combining soft hard layers with architecture. Variations number thicknesses, as well distribution within coating are determinant obtain adequate order wear rate. was found high presented lower rates, comparison single layer low coatings.