METHOD FOR PRODUCING COMPOSITE POWDER WIRE FOR MELTING alloys based on nickel aluminide Ni3Al

摘要

method u0438u0437u0433u043eu0442u043eu0432u043bu0435u043du0438u00a0 powder wire u0434u043bu00a0 welding and surfacing powder, in which the wire u0432u044bu043fu043eu043bu043du00a0u044eu0442 u0434u0432u0443u0445u0441u043bu043eu0439u043du043eu0439 containing layers of materials r u0430u0437u043du043eu0433u043e composition and technological joints have diametrically opposite to one another, with the inner layer u0432u044bu043fu043eu043bu043du00a0u044eu0442 plastic me tallaght, and the outer of the u0431u044bu0441u0442u0440u043eu0443u043fu0440u043eu0447u043du00a0u044eu0449u0435u0433u043eu0441u00a0,with the u043eu0431u0436u0430u0442u0438u0435 layers u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 jointly, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0, before u043eu0431u0436u0430u0442u0438u0435u043c segments of a u-shaped profile formed of the aluminum tape, u0437u0430u043fu043eu043bu043du00a0u044eu0442 u0448u0438u0445u0442u043eu0439, u0441u043eu0434u0435 u0440u0436u0430u0449u0435u0439 powder plastic easy u0434u0435u0444u043eu0440u043cu0438u0440u0443u044eu0449u0438u0445u0441u00a0 metals (al, ni), u0434u043bu00a0 u0437u0430u043fu043eu043bu043du0435u043du0438u00a0 voids in the joint u043eu0431u0436u0430u0442u0438u00a0 outdoor - nickel - and internal - u0430u043bu044eu043cu0438 u043du0438u0435u0432u043eu0433u043e - layersin which, at the same time, further u0432u0432u043eu0434u00a0u0442 wire components mainly refractory metals (ta, w, mo), u0440u0430u0441u043fu043eu043bu0430u0433u0430u00a0 their coaxial shell, and u0434u043bu00a0 p u043eu043bu0443u0447u0435u043du0438u00a0 u043du0430u043fu043bu0430u0432u043bu0435u043du043du043eu0433u043e metal matrix on the basis of u0430u043bu044eu043cu0438u043du0438u0434u0430 u043du0438u043au0435u043bu00a0 Ni3Al mass by u0448u0438u0445u0442u0443 u043au043eu043cu043fu043eu0437u0438u0446u0438u043eu043du043du043eu0439 powder wire u043du0438u043au0435u043bu00a0 and u0430u043bu044eu043cu0438u043du0438u00a0 choose from u043eu043eu0442u043du043eu0448u0435u043du0438u00a0:;where Niu0448u0438u0445.; Niu043eu0431u043eu043b.; Alu0448u0438u0445.; Alu043eu0431u043eu043b. the content of u043du0438u043au0435u043bu00a0 and u0430u043bu044eu043cu0438u043du0438u00a0 respectively in u0448u0438u0445u0442u0435 and u043du0438u043au0435u043bu0435u0432u043eu043c u0441u043bu043eu00a0u0445 u043au043eu043cu043fu043eu0437u0438u0446u0438u043eu043du043du043eu0439 powder and aluminium wire, mas.%.