| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Frontiers in Solidification Science VIII
|
| Presentation Title |
Directional Solidification of Al-10wt.%Cu Alloy in Hypergravity |
| Author(s) |
Ali Jafarizadeh, Sonja Steinbach, Florian Kargl |
| On-Site Speaker (Planned) |
Ali Jafarizadeh |
| Abstract Scope |
Many studies have investigated the effect of external fields (electric currents, magnetic and ultrasonic fields) on the solidification structures in castings. In contrast, research on the effect of hypergravity fields as in centrifugal casting is lacking. Although some researchers have looked into the impact of supergravity fields or centrifugal fields on refining the as-cast structures, the effect of hypergravity on directionally solidified microstructures is not understood.
Therefore at DLR, a new furnace is built up, and the first experiments are performed with Al-10wt.%Cu alloys directionally solidified at different gravity levels on a centrifuge. The samples solidified in hypergravity are evaluated regarding the processing parameters and the primary dendrite spacing. The results are compared with the microstructure from lab in-situ experiments at 1g and accepted steady-state growth models. This will be an important step towards a better theoretical understanding of the influence of hypergravity on the microstructure formation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Solidification, Aluminum, Other |