FIELD: metallurgy, in particular aluminum-copper-magnesium alloys useful as structural materials in airspace technique.
SUBSTANCE: claimed alloy and article made of the same contain (mass %): copper 3.8-5.5; magnesium 0.3-1.6; manganese 0.2-0.8; titanium 0.5.10-6-0.07; tellurium 0.5.10-5-0.01, at least one element from group containing silver 0.2-1.0; nickel 0.5.10-6-0.05; zinc 0.5.10-6-0.1; zirconium 0.05-0.3; chromium 0.05-0.3; iron 0.5.10-6-0.15; silicium 0.5.10-6-0.1; hydrogen 0.1.10-5-2.7.10-5; and balance: aluminum.
EFFECT: alloy of high strength, crack resistance, durability and increased lightning resistance.
2 cl, 2 tbl, 1 ex
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