About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Special Topics in Nuclear Materials: Reproducibility and Uncertainty; Hydrogen Effects; Space and Microreactor Systems
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| Presentation Title |
K-8: Deuterium Retention in Grain Oriented, Additive Manufactured Tungsten |
| Author(s) |
Aaliyah Zuniga, Florian Laggner, Haozhi Zhang, Olivia Mehalick, Syed Rizvi, Elizabeth Kautz, Thomas Fuerst, Masashi Shimada, Timothy Horn |
| On-Site Speaker (Planned) |
Aaliyah Zuniga |
| Abstract Scope |
Tungsten (W) is a leading candidate for plasma-facing components in fusion reactors; however due to its room temperature friability, it is difficult to manufacture conventionally. Electron beam powder bed fusion additive manufacturing (AM) operates in a vacuum environment and at elevated temperatures far above the ductile to brittle transition, and therefore enables fabrication of intricate geometries and also grain orientation through tuning of beam path parameters. However, additional qualification of AM-W under reactor-relevant conditions is required. This study focuses on the deuterium retention in AM-W samples with dominant grain orientations of (001) or (111) exposed to deuterium plasmas in the Tritium Plasma Experiment at Idaho National Laboratory. The samples were characterized before and after deuterium plasma exposure using SEM and XPS. Thermal desorption spectroscopy was performed after the exposure to quantify retention and release behavior. These results provide insight into the influence of crystallographic orientation on deuterium retention in AM-W. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Additive Manufacturing, Characterization |