PRODUCT MADE OF ALUMINIUM ALLOY WITH HIGH RESISTANCE AGAINST DAMAGES, PARTICULARLY, FOR APPLICATION IN AEROSPACE INDUSTRY Russian patent published in 2009 - IPC C22F1/57 C22C21/18 

FIELD: metallurgy.

SUBSTANCE: invention relates to aluminium alloy, particularly it relates aluminium alloys of type Al-Cu-Mg products, implemented of them and implementation method for such products. Product is implemented from deformed aluminium alloy, containing, wt %: Mg and Cu, content range of which is limited, as it is shown on figure 1 by quadrangle with defined vertexes A(0.45; 5.35), B(0.75; 5.35), C(0.75; 4.92) and D(0.45; 5.20), Fe < 0.20, Si < 0.20, Zn < 0.40, and Mn in the range from 0.15 till less than 0.4 in aggregate with Zr in the range from 0.06 till 0.18 and not obligatory by one or more elements-dispersoid-formers, chosen from group, consisting of: Sc < 0.7, Cr < 0.4, Hf < 0.3, Ag < 1.0, Ti < 0.4, V < 0.4, aluminium and unavoidable admixtures - the rest.

EFFECT: receiving of product, allowing balance combination of high durability and low growth rate of fatigue crack.

16 cl, 6 dwg, 8 tbl, 3 ex