Effects of Rolling Parameters on Stress-Strain Fields and Texture Evolution in Al-Cu-Sc Alloy Sheets

This work examines how rolling speed, feeding rate, and pass schedule-with a constant total reduction-affect the stress-strain fields, rolling force, and texture evolution of Al-Cu-Sc alloy sheets. A coupled finite element (FEM) and viscoplastic self-consistent (VPSC) framework is employed and compared with EBSD measurements to connect macroscopic fields with microscale texture changes. Results indicate that increasing rolling speed raises the effective strain rate and deformation heating, which lowers peak rolling force and improves in-plane stress homogenization on the RD-ND plane, while enhancing surface-core incompatibility and residual-stress gradients along the ND-TD direction. A higher feeding rate mainly intensifies work hardening, slightly elevates rolling force, and promotes near-surface stress/strain localization; in contrast, multi-pass schedules redistribute deformation between passes and reduce macroscopic stress concentration. Texture analyses show a speed-induced rotation from ⟨001⟩ toward ⟨111⟩ orientations, strengthening shear-related components; KAM maps suggest increased local orientation gradients consistent with higher stored energy. The simulations capture the principal experimental trends across conditions, supporting the use of the combined framework for trend-level process guidance. Overall, the findings clarify parameter-microstructure relationships and provide a basis for designing rolling routes that balance force reduction, stress uniformity, and texture control in Al-Cu-Sc sheets.