About this Abstract |
| Meeting |
Materials in Nuclear Energy Systems (MiNES) 2025
|
| Symposium
|
Materials in Nuclear Energy Systems (MiNES) 2025
|
| Presentation Title |
Phase-Field Modeling of Microstructural Evolution With Inclination-Dependent Grain Boundary Energies |
| Author(s) |
Bohyun Yoon, Nele Moelans, Kunok Chang |
| On-Site Speaker (Planned) |
Bohyun Yoon |
| Abstract Scope |
Grain growth plays a critical role in determining the mechanical, thermal, and electrical behavior of polycrystalline materials. Although isotropic grain growth has been widely explored, the effects of anisotropic grain boundary characteristics—especially their inclination dependence—are not yet fully understood. This work builds upon Moelans’ phase-field model, adapting it for application in both two- and three-dimensional polycrystalline systems by introducing a spherical Gaussian representation for grain boundary energy that varies with inclination. We estimate local grain boundary curvature using the divergence of the normalized phase-field gradient, utilizing a finite-difference method. Our computational results reveal that anisotropy in grain boundary properties considerably influences grain shape and growth behavior. This research advances our comprehension of microstructural changes in polycrystals and provides valuable direction for optimizing material properties through grain boundary design. |
| Proceedings Inclusion? |
Undecided |