Инновационная технология упрочнения конструкционных материалов легированными титановыми покрытиями

Abstract

The gas transport SHS-technology for the formation of doped titanium coatings in the thermal self-ignition mode on structural materials and alloys is considered. The laws and mechanisms of the formation of protective layers are investigated. The dependence of the coating thickness on the technological parameters of the process is established. Using the methods of mathematical modeling, the optimal compositions of SHS-mixtures for the application of complex coatings have been developed. The influence of the composition of SHS-mixture on the properties of the coatings obtained was studied. In order to analyze the process of forming complex doped coatings based on titanium under SHS conditions, the equilibrium state of the reaction products in multicomponent powder systems was calculated. A kinetic scheme of chemical transformations is proposed. The results of microscopic and X-ray analysis of the phase composition of the obtained coatings are presented. The influence of the surface SHS hardening of materials on the performance characteristics of materials is considered.