Crack resistance of extruded and rolled semifinished products of aluminum alloys used in the load structures of an airplane wing

This work is a continuation of investigations [1-3] of the combination of properties of large extruded androlled semifinished products of Dl6chT, V95pchTl, and V95pchT2 alloys and of the new alloys II61T and I163T used for the production of panels and skins of aircraft wing torsion boxes. The original data on the semifinished products and on their mechanical characteristics was presented in [1-3].