Aluminum alloy product high damage tolerance for, in particular aerospace applications.

摘要

Aluminum alloy product high damage tolerance for, in particular aerospace applications.; A product wrought aluminum alloy with high strength and high fracture toughness and high fatigue resistance and low rate of development of fatigue cracks, and having a composition of (in weight%): 0.3 to 1 , 0% of Mg, 4.4 to 5.5% Cu, 0 to 0.20% Fe, 0 to 0.20% Si, 0 to 0.40% Zn and Mn in a range of 0 15 to 0,8 or elements forming dispersed phases, in combination with one or more elements forming selected from the group consisting of Zr, Sc, Cr, Hf, Ag, Ti, V disperse phases, the balance being aluminum (Al ) and other incidental elements, and where there is a limitation of the Cu-Mg so that: -1.1 [Mg] + n [Cu] leq 5.5. The invention further relates to a method for manufacturing a product of this type.