About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Advanced Characterization With Synchrotron, Neutron, and In Situ Laboratory-scale Techniques IV
|
| Presentation Title |
In-situ X-ray characterization of electron beam powder bed fusion (PBF-EB) |
| Author(s) |
Hans-Henrik König, Nick Semjatov, Pidassa Pidola, Gloria Graf, Ulf Ackelid, Carolin Körner, Greta Lindwall |
| On-Site Speaker (Planned) |
Greta Lindwall |
| Abstract Scope |
To enable high-speed in-situ X-ray imaging, diffraction and scattering during electron beam powder bed fusion (PBF-EB), we have developed the MiniMelt sample environment [1]. This work presents the design and capabilities of MiniMelt and its deployment at two beamlines at the PETRA III synchrotron facility (DESY, Hamburg, Germany).
We demonstrate the application of MiniMelt to capture transient phenomena during AM, including powder behavior, melt pool dynamics, and phase evolution. In particular, in-situ diffraction and SAXS measurements reveal detailed insights into solidification pathways, solid-state phase transformations, and precipitation kinetics during the build process. These real-time observations not only reveal phenomena inaccessible through ex-situ experiments, but also provide critical validation data for computational models. Ultimately, they enhance our ability to design AM processes and alloys with tailored microstructures and properties.
[1] H.-H. König et al., Review of Scientific Instruments. 94, 125103 (2023). |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Phase Transformations |