| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Frontiers in Solidification Science VIII
|
| Presentation Title |
Morphological Evolution during Solidification |
| Author(s) |
Tiberiu Stan, Alexander Chadwick, Kate Elder, Xianghui Xiao, Peter W. Voorhees |
| On-Site Speaker (Planned) |
Peter W. Voorhees |
| Abstract Scope |
Understanding the evolution of solidification structures in three dimensions and as a function of time is central to linking materials processing to microstructure and properties. Time-resolved X-ray tomographic measurements of the evolution of dendrites during the transient stages of growth will be presented. The evolution of parameters characterizing the growth dynamics of the dendrite tip as well as the morphology of the dendrite will be presented. There has been a resurgence in interest in rapid solidification processing due to applications in additive manufacturing. A model for solidification in near the limit of absolute interfacial stability or complete solute trapping has been developed that follows the evolution of thousands of grains during additive manufacturing in three dimensions. An advantage of the approach is that it captures the physics of the motion and rotation of the grain-boundary-solid-liquid-interface trijunctions that are responsible for the evolution of the grain morphology. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Solidification, Additive Manufacturing, Computational Materials Science & Engineering |