About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Materials, Processes and Applications for Energy Industry
|
| Presentation Title |
Additive Manufacturing of Hermetically Sealed Porous Components for Nuclear Applications Via Laser Powder Bed Fusion |
| Author(s) |
Sydney Lynch, Thinh Huynh, Kevin Graydon, Naoto Kimura, Brendan Ensor, Paul Day, Kiran Nimishakavi, Yongho Sohn |
| On-Site Speaker (Planned) |
Sydney Lynch |
| Abstract Scope |
Laser Powder Bed Fusion (LPBF) is a promising additive manufacturing technique for fabricating near-net-shape components with complex geometries and integrated functionalities. In this study, a component was additively manufactured to meet the requirements of nuclear applications - specifically neutron absorption, helium capture, heat transfer, and corrosion resistance. The component featured a fully enclosed internal porous structure, designed using lattice or triply periodic minimal surface (TPMS) geometries to achieve approximately 50% porosity by volume. The porous region was constructed using a Fe-Cr-Al-B alloy, while the outer skin, which hermetically sealed the internal structure, was built using a Fe-Cr-Al alloy. LPBF process parameters and build strategies were optimized to enable complete powder removal from the enclosed porous region. The results, including phase constitution analysis, macro- and microstructural characterization, and compressive strength measurements, will be presented to validate the structural integrity and performance of the fabricated component. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Nuclear Materials, Characterization |