| Abstract Scope |
The development of phase field models of grain boundary systems dates back to the late 1990s, when several approaches were put forward, each with their own drawbacks and strengths. In the intervening decades one class of models, multi-order parameter phase field models, has seen significant adoption, while orientation-based phase field models have gotten far less attention. In this talk I will explore these issues, and describe a new way forward, developed by Staublin et al. (https://doi.org/10.48550/arXiv.2603.14660), for orientation-based models, one that permits fully anisotropic, experimentally-specified grain boundary energies and mobilities. The model shows great promise towards achieving high-fidelity, efficient, engineering-relevant phase field models of polycrystalline materials. |