|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Frontiers in Solidification Science and Engineering
||Application of Fast X-ray Radiography to the In Situ and Real-time Observation of Ni-based Alloy Directional Solidification
||Guillaume Reinhart, Lara Abou-Khalil, Vincent Maguin, Gildas Guillemot, Charles-André Gandin, Vincent Fernandez, Elodie Boller, David Grange, Ngadia Taha Niane, Nathalie Mangelinck, Henri Nguyen-Thi
|On-Site Speaker (Planned)
Direct observation of metal alloy solidification by X-ray imaging is an invaluable tool to reveal the dynamics of microstructure formation. Among the various X-ray imaging techniques available using laboratory or synchrotron sources, X-ray radiography is an attractive method that simply consists in illuminating a thin sample with X-ray radiation. The transmitted image is collected on a detector to obtain a projected image of the solidification front, in situ and in real-time.
The present communication reports observations of the solidification of CMSX-4 and Ni-11wt.%Al alloys by using fast synchrotron X-ray radiography. Experiments have been carried out at the ID19 beamline of ESRF using a new high temperature furnace allowing materials with a high melting temperature to be studied. The formation of a dendritic network has been studied for directional solidification experiments. Interaction with convective flow will be reported along with measurements of characteristic parameters that will be compared to analytical models.
||Planned: Supplemental Proceedings volume