FIELD: metallurgy of aluminum-based alloys on base of Al-Mg-Mn system for manufacture of armored semi-finished products and articles for aviation and shipbuilding and other civil equipment.
SUBSTANCE: proposed alloy contains the following components, mass-%: magnesium, 4.2-6.5; manganese, 0.5-1.2; zinc, up to 0.2; chromium, up to 0.2; titanium, up to 0.15; silicon, up to 0.25; iron, up to 0.3; copper, up to 0.1; zirconium, 0.05-0.3 and at least one element selected from group containing: scandium, 0.05-0.3; beryllium, 0.0001-0.01; yttrium, 0.001-0.1; neodymium, 0.001-0.1; cerium, 0.001-0.1, the remainder being aluminum. Proposed alloy and articles made from it possesses high resistance to ballistic action of various projectiles due to optimal strength characteristics, optimal structure and plasticity characteristics.
EFFECT: high resistance to ballistic action of projectiles; enhanced corrosion resistance and weldability; reduced mass.
3 cl, 1 dwg, 3 tbl, 3 ex
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