FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy, particularly, to aluminium-copper alloys containing vanadium. Proposed composition contains the following substances, in wt %: Cu 3.3-4.1, Mg 0.7-1.3, V 0.01-0.16, Mn 0.01-0.7, 0.01-0.25 of at least one element defining the grainy structure and selected from the group consisting of Zr, Sc, Cr and Hf, Zn up to 1.0, Ag up to 0.6, Fe up to 0.25 and Si up to 0.25, aluminium, other elements and impurities making the rest.
EFFECT: higher strength, resistance to corrosion and fatigue crack growth.
23 cl, 11 dwg, 11 tbl, 4 ex
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