Applied Physics and Mathematics Annotation << Back STRUCTURE AND PROPERTIES OF THE “COATING (MO-AU)/(COPPER) SUBSTRATE” SYSTEM AFTER IRRADIATION WITH A PULSED ELECTRON BEAM AND NITRIDING IN A LOW-PRESSURE GAS DISCHARGE PLASMA V.V. POCHETUHA, D.A. ROMANOV, A.D. FILYAKOV, Yu.F. IVANOV The electroexplosive spraying of Mo-Au coating and complex treatment including low energy impulse electron beam impact and nitriding by low-pressure arc discharging plasma. The thickness of the coating varies from 50μm to 100 μm. The coating elemental composition was obtained by X-ray microanalysis. It was found that coating alloyed by copper atoms from the substrate. The multi-phase composition of the coating was found by x-ray analysis. There is a solid solution based on copper and molybdenum, CuAu, Cu0.25Au0.75 . The structure of the coating was investigated by transmission electron microscopy. The formation of copper and molybdenum nitrides was detected. Their size varies from 20 to 45 nm. The main mechanical properties and tribological characteristic were investigated. Keywords: electrical contact, coating, gold, molybdenum, electroexplosive spraying, nitriding, electron-beam treatment. DOI: 10.25791/pfim.02.2023.1256 Pp. 23-34.