TY JOUR TI METHODS OF APPLYING METALLIZED COATINGS ON THE SURFACES OF HEAT EXCHANGE PIPES KW electric spark spraying KW gas-thermal spraying KW and electric erosion alloying JO Scientific Papers Collection of the Angarsk State Technical University AU Podoplelov, E.V. AU Dement'ev, A.I. AU Abramov, A.R. PY 2026 IS 2026 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»