Multiscale, coupled chemo-mechanical modeling of bainitic transformation during press hardening
Prahl, U. and Lin, M. and Weikamp, M. and Hueter, C. and Schicchi, D. and Hunkel, M. and Spatschek, R.
Volume: Part F4. Pages: 335-343
DOI: 10.1007/978-3-319-57864-4_31
Published: 2017
Abstract
We present our recent developments in multiscale and multiphysics modeling of bainite formation under mechanical loads in the press hardening process. The full field description of the bainitic microstructure by a multi-phase field model is linked to a crystal plasticity model at micrometer scale to simulate the mutual interaction between the phase transformation and plastic accommodation of the lattice distortion. Homogenized parameters of the phase fields are then coupled with a finite element model at a larger length scale to facilitate the calculation of transformation plasticity. The crystallographic features, transformation strain and texture of the simulated phase structure are discussed with comparison with experimental observations. © The Minerals, Metals & Materials Society 2017.