Research of plastic anisotropy and crystallographic texture evolution during production of sheets from commercial aluminum

The paper establishes a relationship between the indicators of plastic anisotropy (coefficient of transverse deformation) and the parameters of the structure of the material. It was also investigated the change of crystallography of the structure and anisotropy parameters on the example of rolling of commercial aluminum Al99. In general, the results of studies indicate a fairly good convergence of the calculated and experimental data, therefore the developed models of plastic flow of anisotropic material, taking into account the crystallographic orientation of the structure, adequately describe the anisotropy of the deformation characteristics of sheet materials. Crystallographic orientations contributing to an increase in the coefficients of transverse deformation are established and also leads to the creation of transverse isotropy. The conducted studies confirm the principal possibility of forming a given crystallographic structure in the sheets which provides an increase in the deformation capabilities of the material in the molding process.