| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Characterizing Evolution of Grain Boundary Network Structure during Anisotropic Grain Growth. |
| Author(s) |
Jose Nino, Oliver Johnson |
| On-Site Speaker (Planned) |
Jose Nino |
| Abstract Scope |
The evolution of the microstructure of polycrystalline materials during grain growth affects many mechanical properties of the material. Historical modeling efforts considered isotropic interface properties. However, it has been shown that anisotropic boundary properties also affect grain growth. We present the results of anisotropic grain growth simulations (based on level set methods) in three dimensions. Full grain boundary (GB) energy anisotropy is achieved by using a recently developed GB energy model that considers all five GB crystallographic degrees of freedom. Initial microstructures with a diverse set of textures are used to perform the simulations. We characterize the global structure of the GB network using a recent spectral decomposition technique where the GB network is represented as a GB energy weighted graph. The present work shows how anisotropic interface energies influence the evolution of the spectrum of the GB network during grain growth. |
| Proceedings Inclusion? |
Planned: |