Deformation Texture Evolution in Flat Profile AlMgSi Extrusions: Experiments, FEM, and Crystal Plasticity Modeling

In the present work, deformation textures during flat profile extrusion from round billets of an AA6063 and AA6082 aluminium alloy have been numerically modeled by coupling FEM flow simulations crystal plasticity compared to experimentally measured obtained electron back-scatter diffraction (EBSD). The was extruded at a relatively low temperature (350°C), while alloy, containing dispersoids that prevent recrystallization, higher (500°C). Both alloys were water quenched exit die, maintain texture after extrusion. center profiles, both exhibit conventional β -fiber Cube component, which significantly stronger highest temperature. classical full-constraint (FC)-Taylor Alamel grain cluster model employed for predictions. models implemented using regularized single yield surface. This approach enables activation any number type slip systems, as well accounting strain rate sensitivity, are important 350°C 500°C. strength nonoctahedral slips strain-rate sensitivity varied global optimization algorithm. At 350°C, good fit could be with FC Taylor model, although clearly performs best. However, even systems invoked, none capable predicting strong component observed