About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing of Metals: Applications of Solidification Fundamentals
|
Presentation Title |
A-27: Phase Field Simulation of Microstructure Evolution during Epitaxial Solidification in Additive Manufacturing Processes |
Author(s) |
Abdur Rahman Al Azad, Philip Cardiff, David J. Browne |
On-Site Speaker (Planned) |
Abdur Rahman Al Azad |
Abstract Scope |
Rapid solidification occurs in Metal Additive Manufacturing (MAM) processes, and the properties of the 3D printed components depend on the solidified microstructure. Fundamental knowledge about the microstructural evolution during the process is useful in producing tailored components with desired properties. Phase field models are powerful computational tools to simulate the development of microstructure in the MAM process. Due to high thermal gradients, the growth morphology is usually columnar or epitaxial. Such directional solidification was simulated using a quantitative phase field model in a two-dimensional domain. A convergence study was carried out to study the effects of diffuse interface width in our simulations. The influence of different processing parameters such as thermal gradient and scan speed on the microstructure is investigated through simulation. Consideration is also given to solute trapping in such rapid solidification. The simulated grain morphology agrees well with an analytical model and experimental findings. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Modeling and Simulation, Other |