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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 Al-1Mn alloy (grade 1400). 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.
Keywords: plastic anisotropy, crystallographic orientation of the structure, the plasticity criterion, the coefficients of transverse deformation, rolling, data storage systems |
full paper (pdf, 928 Kb)