Investigation of the properties of Ti/TiN/TiCN gradient hard coating deposited on Stavax ESR steel

摘要

The application of hard wear-resistant coatings in the industry constantly increases because of the growing requirements for the quality of tools and products.The field of the injection molds is not an exception,there are important problems,e.g.,reducing the wear of the forming elements,as well as achieving easier ejection of the finished article.These challenges could be resolved by applying an appropriate coating.In this work,a gradient Ti/TiN/TiCN hard coating was deposited on Stavax ESR steel by physical vapor deposition(PVD)method.Some important properties for its practical application were studied emphasizing on its wear resistance.For investigating the latter,a methodology based on the ball-on-flat test was used,as the wear volume was geometrically calculated on the basis of the measured track width.Data from the conducted studies of the wear resistance as a function of the normal load of the tribosystem are presented.Analysis of the results was performed and conclusions were made with regard to the practical application of the coating.