| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Research in Reduced Gravity
|
| Presentation Title |
Thermo-physical Properties of Fe-Si Alloys under Microgravity |
| Author(s) |
Antonia Betzou, Markus Mohr, Rainer Wunderlich, Begona Santillana, Hans Fecht, Sridhar Seetharaman, Prakash Srirangam |
| On-Site Speaker (Planned) |
Markus Mohr |
| Abstract Scope |
Thermo physical properties of liquid steel play an important role in casting and solidification processes. The investigation of these properties such as viscosity and surface tension could lead to the prediction of liquid metal flow in casting and solidification and thus the efficient control of these metallurgical processes. Measuring thermos physical properties in microgravity conditions can eliminate any influences on the container walls and, thus, provide pure alloy values. In this study, viscosity and surface tension of Fe-10% Si alloy was measured by conducting experiments using an electromagnetic levitation device on board a parabolic flight airplane. Also, the viscosity values were measured under terrestrial conditions using a high temperature rheometer. The viscosity of Fe-10% Si alloy was found to be 8.3 mPa.s, while the viscosity of the same alloy under terrestrial conditions was found to be 7.5 mPa.s. The discrepancy in these viscosity values needs to be further investigated. |
| Proceedings Inclusion? |
Planned: Publication Outside of TMS |