Mechanical anisotropy and deformation mechanisms in an AlCuZr superplastic alloy

Severe mechanical anisotropy of deformation is reported for a superplastic Al6Cu0.3Zr alloy. This anisotropy is a function of strain and strain-rate, decreasing with increasing strain and increasing with decreasing strain-rate until a certain limiting value is reached at any given strain. By use of the quantitative texture measurements reported in the preceding paper it has been possible to predict the anisotropy of deformation expected from...