Structure and properties of composite layers by means of CVD coating annealing on tool steel

Abstract

The study of structural changes in chrome CVD coatings on tool steel as a result of annealing and their effect on resid-ual stresses and adhesion of coating having steel substrate, has been considered. The results of studies of residual stresses in the chrome coating and the relative adhesion index are presented. It is shown that heating of the gas-phase coating leads to the formation of a transitive layer between the coating and the substrate, increasing their adhesion.