A model for predicting evolution of microstructure during hot forming of bulk Al-Mg-Si alloys is being developed. The model is based on underlying microstructural phenomenology. The modeling effort focuses at the grain scale and consists of two key parts, a deformation model and a grain recrystallization/growth model. The deformation model provides information regarding grain misorientations (subgrain formation) and stored energy in the form of dislocation densities. This information together with information regarding solute/precipitate distributions is used to drive models for subsequent precipitate evolution and grain recrystallization and growth. An integrated experimental program provides information for model development, calibration, and validation. A coordinated outreach program focused on introducing engineering and materials research to middle and high school students and teachers is also part of this effort.
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