About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques III
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Presentation Title |
Ultrafine Ti-Fe-based Eutectics for Additive Manufacturing: Pytcho, Micro, and Operando X-ray Imaging for Characterization |
Author(s) |
Federico Sket, Katrin Bugelnig, Joachim Gussone, Jan Haubrich, Akshya Kumar Pandey, Peter Cloetens, Ulrike Hecht, Julio Cesar da Silva, Manas Upadhyay, Philip J. Withers, Mark Easton, Yunhui Chen, Alexander Rack, Guillermo Requena |
On-Site Speaker (Planned) |
Federico Sket |
Abstract Scope |
Eutectic alloys are a special class of multiphase materials that grow directly from the melt following a eutectic reaction. Their properties depend on the eutectic spacing, which can be below 200 nm at high solidification rates. In the present work, eutectic Ti-Fe-based alloys have been produced by laser powder bed fusion, with the aim of exploiting rapid solidification and the capability to produce bulk ultrafine microstructures provided by this processing technique.
Here we will present the resulting microstructures and provide an overview of powder production, laser processing, and on the details of microstructure formation. The microstructure was studied three-dimensionally using near-field synchrotron ptychographic X-ray tomography to analyze morphology of the microstructure, mass density, size, and distribution [1]. SEM, EBSD, and S-XRD complement characterization. Additionally, operando synchrotron radiography during laser processing was conducted to elucidate the melting and solidification mechanisms of these alloys.
[1] Gussone, et al. https://doi.org/10.1016/j.apmt.2020.100767 |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Additive Manufacturing, High-Temperature Materials |