Application of modern aluminum alloys to aircraft

Crystallographic texture, anisotropic yield surfaces and forming limits of sheet metals

Effects of strain localization on surface roughening during sheet forming

Material modeling of 6016-O and 6016-T4 aluminum alloy sheets and application to hole expansion forming simulation

Precipitation strengthening of stress-aged Al–xCu alloys

Plane-strain compression tests were made on age-hardened Al-4 pct Cu single crystals of various orientations. The resulting stress-strain curves showed much less anisotropy than would be expected from single-phase crystals under the same conditions of testing. The data are explained by a model in which compatibility is maintained between the matrix and the precipitate platelets, the platelets both deforming and rotating. This model predicts that normally weak orientations are strengthened more by precipitation than normally hard orientations.

R. H. Zeisloft

Papers

The anisotropy of age-hardened Al-4 pct Cu single crystals during plane-strain compression