STUDY OF GALVANIC COATINGS BY THE THERMOELECTRIC AND MAGNETIC-SEPARATION METHODS WITH DIFFERENT APPLICATION AND HEAT-TREATMENT CONDITIONS

An experimental study is made of the dependence of measurements of the rmo-emf and magnetic pull an the annealing temperature of galvanic nic kel coatings applied to bronze BrKh08. It is shown that a connection e xists between the parameters of the nondestructive testing and the con dition of the surface of the substrate, which is subjected to grinding , pickling, and annealing. The test parameters are also related to the presence of a highly defective, nonequilibrium sublayer composed of t he material at the coating-substrate interface. The findings make it p ossible to use the given methods for studies and comparative evaluatio ns of. The effect of coating application conditions on the course of d iffusion processes during heat treatment.