| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Defects and Properties of Cast Metals
|
| Presentation Title |
Bubble Induced Convection During Dendritic Solidification |
| Author(s) |
Seyed Amin Nabavizadeh, Mohsen Eshraghi, Sergio D. Felicelli |
| On-Site Speaker (Planned) |
Seyed Amin Nabavizadeh |
| Abstract Scope |
The Pore Formation and Mobility Investigation (PFMI) at the International Space Station revealed that the Marangoni convection caused by the presence of bubbles could affect the microstructure formation. The experiment provided information on the bubble movement and morphological evolution during remelting and directional solidification under microgravity condition for succinonitrile (SCN)-water binary alloy. In this work, a three-dimensional lattice Boltzmann (LB)-Cellular automaton (CA) model was utilized to study the effects of Marangoni convection on the solidification microstructure. The results reveal that the induced convection is strong enough to bend dendrites from preferential crystallographic direction and can affect the dendrite growth rate, which can affect the subsequent mechanical and physical properties. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |