METHOD FOR MANUFACTURING PARTS OF TITANIUM PSEUDO-α-ALLOYS Russian patent published in 2018 - IPC B23K20/14 B21D26/55 

FIELD: technological processes.

SUBSTANCE: invention can be used to produce complex shape parts by superplastic stamping. Vacuum-arc smelting of the ingot form alloy VT20 and the part is produced by superplastic deformation of the ingot at a strain rate of 10^-4 s^-1 followed by heat treatment. While the vacuum-arc smelting of the ingot, a ligature (Ti-Al-Gd) is introduced into the alloy composition. Superplastic deformation is carried out at a temperature of 800 to 900 °C, and the heat treatment – at a temperature of 800 to 850 °C followed by exposure at a temperature of 400 to 500 °C until (α+β)-phase of the titanium alloy is obtained.

EFFECT: invention provides increased strength properties, elasticity modulus and corrosion resistance of parts made of titanium pseudo-α-alloy VT20 due to selecting its alloying composition.

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