METHOD FOR PRODUCING NANOSTRUCTURED functionally graded wear resistant coatings

摘要

1.method u043du0430u043du0435u0441u0435u043du0438u00a0 u043du0430u043du043eu0441u0442u0440u0443u043au0442u0443u0440u0438u0440u043eu0432u0430u043du043du044bu0445 functional u0433u0440u0430u0434u0438u0435u043du0442u043du044bu0445 endurance coating powder compositions comprising file of one and / or group of metal s al, cu, ni, zn, sn, ti, pb,co and / or alloys based on supersonic flow of hot gas (such as air) and causing the powder composition to the surface u0438u0437u0434u0435u043bu0438u00a0 on linear and any dependence through a powder composition of two or more metering devices, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0, causing u043fu043eu043au0440u044bu0442u0438u00a0 u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 in three stages.at the first stage of the pre u0432u0432u043eu0434u00a0u0442 in supersonic flow of hot gas u0443u043bu044cu0442u0440u0430u0434u0438u0441u043fu0435u0440u0441u043du044bu0435 waterproof nonmetallic particles, for example Al2u043e3, fraction of 0.1 to 1.0 microns of the divider 1 and u043fu0440u043eu0432u043eu0434u00a0u0442 surface treatment u043du0430u043fu044bu043bu00a0u0435u043cu043eu0433u043e u0438u0437u0434u0435u043bu0438u00a0 to u043eu0431u0440u0430u0437u043eu0432u0430u043du0438u00a0 u044eu0432u0435u043du0438u043bu044cu043du043eu0439 surfacethen at the second stage, the surface of the u043du0430u043fu044bu043bu00a0u0435u043cu043eu0433u043e u0438u0437u0434u0435u043bu0438u00a0 of divider 2 u043du0430u043du043eu0441u00a0u0442 powdered composition of one and / or group of metals al, cu, ni, zn, sn, ti, pb,with and / or alloys based u0434u043bu00a0 u043fu043eu043bu0443u0447u0435u043du0438u00a0 intermediate u0441u043bu043eu00a0 and at the third stage, u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 of functionally gradient u043fu043eu043au0440u044bu0442u0438u00a0 of both slave u043eu0442u0430u044eu0449u0438u0445 metering devices 1 and 2, with an increase in u0441u043eu0434u0435u0440u0436u0430u043du0438u00a0 Al2u043e3 cover from the intermediate u0441u043bu043eu00a0 to surface in the range from 0.1 to 30% about. linear or other dependence.;2. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that the speed of u0433u0435u0442u0435u0440u043eu0444u0430u0437u043du043eu0433u043e flow at the first stage u0438u0437u043cu0435u043du00a0u044eu0442 ranged from 300 to 400 m / s, at the second and third u0441u0442u0430u0434u0438u00a0u0445 from 400 to 650 m / s.;3. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that the u0434u043bu00a0 u0441u043du0438u0436u0435u043du0438u00a0 porosity u043fu043eu043au0440u044bu0442u0438u00a0 of the divider 2 is a mixture of powders of metal and / or its alloy, u0441u043eu0441u0442u043eu00a0u0449u0443u044e particles next to u043eu0442u043du043eu0448u0435u043du0438u00a0 factions of.%: 5 to 50 microns in a quantity of from 50 to 99%; 50 - 800 nm in number from 1 to 50%.;4. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1 or 3, so that the mixture of powders with different u0444u0440u0430u043au0446u0438u043eu043du043du044bu043c composition are directly u0433u0435u0442u0435u0440u043eu0444u0430u0437u043du043eu043c flow through u0438u0441u043fu043eu043bu044cu0437u043eu0432u0430u043du0438u00a0 dop u043eu043bu043du0438u0442u0435u043bu044cu043du043eu0433u043e divider 3, in which u043fu043eu043cu0435u0449u0430u0435u0442u0441u00a0 u043du0430u043du043eu0434u0438u0441u043fu0435u0440u0441u043du044bu0439 powder fraction less than 800 nm.