MODELING MICROSTRUCTURAL EVOLUTION OF MULTIPLE TEXTURE COMPONENTS DURING RECRYSTALLIZATION

Models were formulated in an effort to characterize recrystallization in materials with multiple texture components. The models are based on a microstructural path methodology (MPM). Experimentally the microstr uctural evolution of conmmercial aluminum during recrystallization was characterized using stereological point and lineal measurements of mi crostructural properties in combination with EBSP analysis for orienta tion determinations. The potential of the models to describe the obser ved recrystallization behavior of heavily cold-rolled commercial alumi num was demonstrated. A successful MPM model was deduced which, for ea ch texture component-random, rolling and cube orientations, was quanti tatively consistent with the measured microstructural properties. Nucl eation and growth rates were deduced for each texture component using the model.