METHOD OF THERMOMECHANICAL TREATING OF LARGE BILLETS OF TITANIUM ALLOYS

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to metallurgy, in particular to a method u0442u0435u0440u043cu043eu043cu0435u0445u0430u043du0438u0447u0435u0441u043au043eu0439 processing large workpieces of titanium alloys mainly systems s ti - al -, - cr - fe - si, and may find its application in the aviation industry, but also in engineering. the improvement of mechanical properties.the alloy is heated to the temperature field and skew to the degree of 60% - 70% at this temperature. then the billets are heated to the temperature u043eu043au043eu043du0447u0430u043du0438u00a0 polymorphous u043fu0440u0435u0432u0440u0430u0449u0435u043du0438u00a0 and u043fu0440u043eu0432u043eu0434u00a0u0442 re deformation.after that again u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u044eu0442 heating to the temperature of u043eu043au043eu043du0447u0430u043du0438u00a0 polymorphous u043fu0440u0435u0432u0440u0430u0449u0435u043du0438u00a0 and u043fu0440u043eu0432u043eu0434u00a0u0442 final deformation, and its complete with temperature (e u0434u0432u0443u0445u0444u0430u0437u043du043eu0439 area corresponding to the - phase of 25% - 40%, immediately after which u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u044eu0442 building in water and ageing in 630 - 650u0441. a way to improve the mechanical characteristics (and KCV) 1.3 to 2.5 times. 1, table 2).