HIGH-STRENGTH ALUMINIUM-BASED ALLOY Russian patent published in 2017 - IPC C22C21/10 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, in particular, to production of high-strength aluminium-based materials, and can be used for production of critical articles, operating under high loads, in particular for fabrication of parts, used for motor industry, aircraft, sports inventory, housings of electronic devices, etc. High-strength aluminium-based alloy contains, wt%: zinc 5.2–6.0, magnesium 1.5–2.0, nickel 0.5–2.0, iron 0.4–1.0, copper 0.01–0.25, zirconium 0.05–0.20, at least one element from a group including scandium 0.05–0.10 and titanium 0.02–0.05, aluminium – balance, when meeting ratio 1≤Ni/Fe≤2 and total content of zirconium and at least one element from a group comprising titanium and scandium, of not more than 0.25 wt%.

EFFECT: technical result is improved strength properties of alloy and articles made therefrom, due to formation of secondary releases of hardening phase by disperse hardening.

8 cl, 3 ex, 4 tbl, 2 dwg