About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Computational Thermodynamics and Kinetics
|
Presentation Title |
Simulation of General Shape Precipitate Using Phase-Field Model Incorporating Interfacial Energy Anisotropy |
Author(s) |
Hwijae Cho, Hyung-Uk Jang, Dong-Uk Kim, Pil-Ryung Cha |
On-Site Speaker (Planned) |
Hwijae Cho |
Abstract Scope |
This study addresses the challenge of predicting the morphology of precipitates in engineering metallic materials, which strongly affects their mechanical properties. It introduces a phase-field model that incorporates asymmetric interfacial energy anisotropy, crucial for accurately predicting precipitate shapes. The model extends existing frameworks by simulating growth of various precipitate shapes, including high aspect ratio needle and plate-like forms, in both coherent and incoherent phases. It explores the relationship between anisotropic factors and precipitate morphology, enabling estimation of interfacial energy anisotropy from observed morphologies. Applications to Al-Si eutectic modification highlight its utility in optimizing material properties, such as controlling the transition from plate-like to dendritic structures in Al die casting processes. This approach advances understanding and application of phase-field modeling in predicting and manipulating precipitate shapes for enhanced material performance. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Modeling and Simulation, Phase Transformations |