СПЛАВ НА ОСНОВЕ АЛЮМИНИЯ И ИЗДЕЛИЕ, ВЫПОЛНЕННОЕ ИЗ НЕГО

摘要

FIELD: metallurgy, in particular high-strength low-density Al-Cu-Li-alloy for airspace, automobile industry and shipbuilding. ^ SUBSTANCE: Claimed alloy and product contain (mass.%): copper 3.2-4.5: lithium 1.0-1.7; magnesium 0.01-0.5; silver 0.15-1.5; zirconium 0.02-0.25; scandium 0.02-0.25; iron 0.02-0.5; silicium 0.03-0.3; at least one element from group containing manganese 0,003-0.5 and zinc 0.001-0.5; and balance aluminum. Alloy and product of invention exhibit reduced density , increased tensile strength and yield strength, as well as high impact resistance and weldability. ^ EFFECT: based-based alloy with improved physical characteristics. ^ 2 cl, 2 tbl, 1 ex