FIELD: process engineering.
SUBSTANCE: invention relates to metal forming and can be used for production of articles from three-component titanium-based alloy containing 2-6 wt % of aluminium and not over 4 wt % of vanadium or zirconium. Billets are subjected to equal-channel angular pressing at 400-470°C at the rate of 0.1-1.0 mm/s. Note here that nano- and sub microcrystalline structures are formed in the billet with grain size not over 0.5 mcm. Deformed billets are subjected to isothermal annealing at 450-550°C for 0.5-1.0 h. Then, the billet is subjected to upsetting or rotary forging at the temperature not higher than that of isothermal annealing.
EFFECT: higher strength and operating performances.
3 cl, 1 dwg
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