Texture and anisotropy in the Al-Mg alloy AA 5005-Part II: Correlation of texture and anisotropic properties

Control of the plastic anisotropy during forming of a metallic sheet requires knowledge about its microstructure and crystallographic texture. In the present study the correlation of texture and anisotropy is studied in sheets of the Al-Mg alloy AA 5005. A series of samples with different textures was produced by various rolling and annealing treatments. In the 1st part of this study the microstructure and texture evolution during back-annealing of rolled sheet and during subsequent cold rolling was analysed. The present 2nd part describes the correlation of the resulting textures with anisotropic sheet properties, including Young's modulus, yield strength and r-values in uniaxial tensile tests as well as earing upon cup drawing. Texture-induced anisotropy was simulated with the help of the visco-plastic self-consistent (VPSC) model. Best agreement between simulations and experiments was obtained by using an affine formulation. For the work-hardened material the anisotropic substructure topology was also taken into consideration. With a view to a comprehensive through-process simulation of the evolution of texture and texture-related properties, in-plane anisotropy was simulated from modelled textures in place of the experimental ones. Here, larger deviations were obtained, since the errors of texture modelling and subsequent simulation of anisotropic properties tend to add up. Nonetheless, the VPSC simulations based on modelled textures were capable of reproducing the overall tendencies of anisotropy in AA 5005 sheet in a variety of tempers. (C) 2014 Elsevier B.V. All rights reserved.