Abstract
The effect of gravity on thermo-solutal convection and its impact on solidification dynamics of an Al-15 wt%Cu alloy were studied using high speed synchrotron tomography. A method for mapping the composition of the solidifying samples was developed, enabling three-dimensional quantification of the time evolved solute concentration and dendrite morphology. Differences in solute segregation, dendrite morphology and fragmentation between upwards and downwards solidification were identified, which were attributed to buoyancy-modulated thermal-solutal convection.
Original language | English |
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Pages (from-to) | 29-33 |
Number of pages | 5 |
Journal | Scripta Materialia |
Volume | 180 |
Early online date | 28 Jan 2020 |
DOIs | |
Publication status | Published - 15 Apr 2020 |
Keywords
- 4D
- Gravity
- Solidification
- Synchrotron tomography
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Birmingham Environment for Academic Research (BEAR)
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