About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Frontiers in Solidification: An MPMD Symposium Honoring Jonathan A. Dantzig
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Presentation Title |
In Situ X-ray Synchrotron Imaging Investigation of Solidification |
Author(s) |
Nathalie Mangelinck-Noel, Guillaume Reinhart, Gabrielle Regula, Henri Nguyen-Thi |
On-Site Speaker (Planned) |
Nathalie Mangelinck-Noel |
Abstract Scope |
All casting processes face challenges linked to grain structure, concentration inhomogeneity and crystalline defects resulting from solidification when aiming at improving the final desired properties.
Our contribution consists in the experimental investigation of the growth mechanisms of different materials (from metals to semiconductors) by in situ X-ray imaging during their solidification. A major originality is the simultaneous combination of X-ray radiography and Bragg diffraction (topography) imaging techniques which provide in situ during solidification information on the morphology and kinetics of the solid/liquid interface, solute segregation, misorientations, structural defect dynamics and on the crystal deformation.
Results concerning the solidification of metallic alloys (Al-based, superalloys) and silicon for photovoltaic applications will be presented as model cases of dendritic and facetted growth, respectively. These results demonstrate the wide range of growth mechanisms that can be better understood with X-ray imaging applied during solidification and their interest for the comparison with simulation codes. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, High-Temperature Materials, |