METHOD FOR PRODUCING A BILLET FROM A TITANIUM-BASED ALLOY FOR ELASTIC ELEMENTS WITH ENERGY-INTENSIVE STRUCTURE Russian patent published in 2019 - IPC C22F1/18 

FIELD: metallurgy.

SUBSTANCE: invention relates to the field of metallurgy, in particular to methods for treating titanium alloys, and can be used in the production of billets with energy-intensive structure, high strength, elasticity and ductility. Method for producing a billet for the manufacture of elastic elements made of a titanium-based alloy, containing, wt. %: aluminum 1.2–4.5, molybdenum 3.5–6.5, vanadium 3.0–6.0, iron ≤ 0.5, carbon ≤ 0.3, hydrogen ≤ 0.03, oxygen ≤ 0.3, nitrogen ≤ 0.15, silicon ≤ 0.5, zirconium ≤ 1.0 and titanium - the rest, includes heating the billet to a temperature of (920–1000) °C, holding at this temperature for 70–140 minutes, then hot deformation with the deformation degree of (90–95) %, followed by cooling to water, cold deformation with the deformation degree of (23–73) % and ageing at a temperature of (390–490) °C for 2–8 hours to obtain a uniform, fine microstructure of orthorhombic martensite α^// with a grain size of (1–10) mcm, on the boundaries of which globular particles of primary α - phase are placed.

EFFECT: increased safety and operational reliability of elastic elements, increased service life of elastic elements, determined by the ratios due to producing a stable energy-intensive structure of the titanium-based alloy.

4 cl, 2 dwg, 3 tbl