Ion implantation influence on chemical composition and structure of surface layers of heat resistant alloys

Available data on the influence of ion implantation on physicochemical state of surface layers are reviewed for heat resisting alloys (titanium base alloys and high-alloy steels). A special attention is paid to the problems of ion selection, irradiation conditions and final heat treatment to assure optimum level of operational properties. To estimate optimum conditions for complex heterogeneous systems the following methods should be used, namely, methods of local equilibrium thermodynamics and chemical kinetics; the theory of fast ions-solids interactions, basic concepts of bulk alloying. Specific features of continuous and pulsed ion implantation are also under consideration