The formation of microstructures in metallic alloys during hot metal forming involves simultaneous metallurgical complex phenomena. Traditional high-fidelity numerical frameworks used on the polycrystalline scale tend to focus on single-phase microstructures or isolate phase transformations from grain boundary migration mechanisms. The level-set method is highlighted as effective in proposing a global framework for modeling multiphase polycrystalline materials and diffusive solid-state phase transformations. This framework includes novel techniques for efficient large-scale microstructural representation, strong coupling with ThermoCalc software for real-time thermodynamic data, application for ternary alloys and beyond by taking solute drag aspects, and the use of advanced nucleation models. Numerous applications are then illustrated.
@article{arxiv.2405.12995,
title = {High-fidelity level-set modeling of diffusive solid-state phase transformations for polycrystalline materials},
author = {Nitish Chandrappa and Marc Bernacki},
journal= {arXiv preprint arXiv:2405.12995},
year = {2024}
}