Abstract
Models have been developed for the combined effect of texture and microstructure on the flow stress anisotropy of metals containing dislocation boundaries with a macroscopic orientation with respect to the sample axes. These are the Taylor and the Sachs models modified to include the anisotropic critical resolved shear stress from the dislocation boundaries. The model predictions have shown that the presence of dislocations in an idealized configuration has a significant effect on the anisotropy caused by the crystallographic texture. These model predictions have been tested for a number of materials parameters. Modelling results have finally been compared with measurements of flow stress anisotropy in aluminium sheets cold rolled 18%, and good agreement has been found.
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