Loading patent…
AssigneeUnited Company RUSAL Engineering and Technology Centre LLC
InventorsViktor Khrist'yanovich Mann, Aleksandr Nikolaevich Alabin, Anton Valer'evich Frolov, Aleksandr Olegovich Gusev, Aleksandr Yur'evich Krokhin, Nikolaj Aleksandrovich Belov
Estimating the term…
The present invention relates to metallurgy of high-strength cast and wrought alloys based on aluminum, and can be used in missioncritical designs operable under load, in the transport field, sports industry, casings for electronic devices, and other industrial sectors. The technical result aims to enhance mechanical characteristics of articles produced from the alloy by precipitation hardening caused by secondary phases in the age-hardening process while providing high workability during casting. The claimed high-strength alloy comprises zinc, magnesium, nickel, iron, copper, zirconium, and at least one metal selected from a group consisting of titanium, scandium and chromium, with the following amounts in, wt %: zinc 3.8-7.4; magnesium 1.2-2.6; nickel 0.5-2.5; iron 0.3-1.0; copper 0.001-0.25; zirconium 0.05-0.2; titanium 0.01-0.05; scandium 0.05-0.10; chromium 0.04-0.15; and the remainder being aluminum, wherein iron and nickel form aluminides of the Al9FeNi phase, which originates from eutectic transformation and represents at least 2 vol %.
A high-strength aluminum-based alloy consisting of aluminum, zinc, magnesium, nickel, iron, copper, zirconium, and one or more metal or metals selected from a group consisting of titanium, scandium, and chromium with the following ratios, expressed in terms of wt. %:
Dependencies are inferred from the claim text.