THERMAL RESIDUAL STRESSES IN MULTILAYER FUNCTIONALLY GRADIENT WC-Cо HARDMETALS

Abstract

The task of the scientific research is to estimate the level of residual thermal stresses using the method of mathematical modeling in an alloy with a three-layer structure WC–30%Co–TiC–WC–30%Co (volume percent) and a microgradient Со at the layer boundaries, as well as to develop technological recommendations to avoid deformation of the multilayer composite. It has been established that the magnitude of residual thermal stresses of the first and second kind significantly depends on the structural and technological parameters of multilayer gradient hard alloys.