| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Hume-Rothery Symposium on Alloy Microstructure Science and Engineering
|
| Presentation Title |
Thermodynamic and Kinetic Studies on Microstructure Changes in Additive Manufacturing |
| Author(s) |
Kaisheng Wu, Magnus Anderson, Johan Jeppsson, Paul Mason |
| On-Site Speaker (Planned) |
Kaisheng Wu |
| Abstract Scope |
Fast progress in Additive Manufacturing (AM) poses both a challenge and an opportunity for traditional thermodynamic and kinetic tools, as adaptations are required to reasonably describe the physics under extremely non-equilibrium and rapidly cyclic cooling-heating conditions. We discussed multiple thermodynamic and kinetic tools that have been developed to help the understanding of complicated microstructure changes of multicomponent alloys subjected to AM processing conditions. Solute trapping and column-to-equiaxed transition (CET) during rapid solidification process, as well as modified solid-state precipitation kinetics have been addressed. Databases developed using CALPHAD approach provide required thermodynamic, kinetic and thermophysical data that enable the application of these tools for multicomponent commercial alloys. Simulation results have been compared with experimental information to reveal their feasibility and identify gaps for further data and mechanism explorations. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Computational Materials Science & Engineering, Phase Transformations |