TITANIUM ALLOY WITH IMPROVED PROPERTIES Russian patent published in 2017 - IPC C22C14/00 C22F1/18 

FIELD: metallurgy.

SUBSTANCE: production method of the titanium alloy blank includes the steps at which the titanium alloy ingot is obtained, including wt %: from 6.0 to 6.7 aluminium, from 1.4 to 2.0 vanadium, from 1.4 to 2.0 molybdenum, from 0.20 to 0.42 silicon, from 0.17 to 0.23 oxygen, up to 0.24 iron, up to 0.08 carbon, titanium and unavoidable impurities remained, perform the first heat treatment of the alloy at the temperature of 40 and 200 Celsius degrees above the beta-transus temperature and forging. Then, the second heat treatment is carried out at the temperature of 30-100 Celsius degrees below the beta-transus, the alloy rolling into the plate, bar, or flat bar and provide annealing at the temperature below the beta transus.

EFFECT: received blanks have high strength, durability characteristics at low cycle fatigue.

21 cl, 11 dwg, 4 tbl