MATERIALS WITH A BODY-CENTERED CUBIC ARRANGEMENT BASED ON TITANIUM, ALUMINUM, VANADIUM AND IRON AND ARTICLES MADE THEREFROM Russian patent published in 2020 - IPC C22C14/00 B22F3/105 

FIELD: metallurgy.

SUBSTANCE: invention relates to production of articles from titanium alloys using additive technologies. Titanium alloy contains, wt %: aluminum 2.0–6.0, vanadium 4–8.75, iron 1.0–5.0, rest is titanium, unavoidable impurities and one or more optional secondary elements, selected from silicon to 1 wt %, yttrium to 1 wt %, erbium to 1 wt %, carbon to 0.5 wt %, oxygen to 0.5 wt % and boron to 0.5 wt %. Amount of titanium, aluminum, vanadium and iron in the alloy is sufficient to provide beta-transition temperature of not more than 850 °C. Article made of titanium alloy is produced by application of successive layers of raw material and then selective melting with formation of article.

EFFECT: obtaining material with a high liquidus point and a narrow equilibrium crystallisation interval which limits microsegregation during hardening.

20 cl, 4 dwg, 5 tbl, 1 ex