ICAMS / Interdisciplinary Centre for Advanced Materials Simulation


Through-process texture simulation

Date: 16.11.2009
Place: Institut für Metallkunde und Metallphysik, RWTH Aachen, Germany

Günter Gottstein, RWTH Aachen, Aachen, Germany

The target parameters of engineering simulations are typically macroscopic quantities that a ect downstream processing, fabrication of parts or in-service properties. One important material property is anisotropy which is caused by a non-random distribution of orientations (i.e. crystallographic texture) in a polycrystalline aggregate. The crystallographic texture undergoes dramatic changes during the processing of a semi- nished product, i.e. during casting, forming, and annealing. A reliable prediction of terminal material properties requires therefore a continuous tracking of the microstructural development during the entire processing chain. Corresponding e orts are referred to as through-process modeling. The presentation will report on a through-process modeling exercise to predict the texture of a commercial aluminum sheet after multiple rolling and annealing steps. The respective microstructure and texture models will be introduced and the predicted texture will be compared to experimental results. Aluminum was used for this study since it generates strong textures, undergoes severe texture changes during processing and needs to be texture optimized for successful subsequent sheet forming operations. For more

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