About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Computational Thermodynamics and Kinetics
|
Presentation Title |
An efficient phase field model of stoichiometric compounds and limited soluble phases |
Author(s) |
Dong-Uk Kim, Seong Gyoon Kim, Pil-Ryung Cha |
On-Site Speaker (Planned) |
Dong-Uk Kim |
Abstract Scope |
A phase field method is well known to be the most powerful interface tracking method to simulate meso-scale material phenomena. Phase-field methods allow us to handle the dynamics of interfaces even with arbitrary shapes at a minimal effort. The equal diffusion potential condition and the anti-trapping current suppress the numerical artifacts originated from the nature of diffusive interfaces. Even with all those efforts, dealing with stoichiometric phases remains such a challenge. A point-wise free energy in terms of composition which omits the composition dependency forces us to introduce imaginary composition dependencies to utilize the equal diffusion potential condition. In this study, we focus on building a computationally efficient and an easy-to-formulate phase-field model to handle general stoichiometric phases and the phases with limited solubilities. We utilize a relaxation-based equal diffusion potential condition for simple soluble phases and extend it to general stoichiometric compounds and limited soluble phases. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Phase Transformations, Solidification |