About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Architected Structures and Multifunctional Metamaterials
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| Presentation Title |
Additive Manufacturing of Multifunctional Structures for Aerospace Combustor Applications. |
| Author(s) |
Henry D. Young, Katie Bruggeman, Showmik Ahsan, Vignesh Asam, Gaspard Matondo, Chris Barrett |
| On-Site Speaker (Planned) |
Henry D. Young |
| Abstract Scope |
Many air-breathing aerospace systems experience extreme thermal and mechanical environments that exist far outside the standard design envelope for modern aircraft. These environments create atypical requirements for materials properties, thermal, chemical and mechanical stability. State-of-the-art metal additive manufacturing methods can create near-monolithic mechanical structures with integrated flame holding and thermal management features. We present our current work on additively manufactured Inconel 718 hot-wall structures with integrated transpirational flow features, potentially allowing for thermal management and surface replenishment using unconventional fluids. Laser powder bed fusion is used to fabricate thin-walled Inconel 718 components with tightly integrated internal manifolding, engineered porosity, and controlled permeability distributed across the hot surface. Microstructural, mechanical and geometric characterization reveal both the potential of this approach and the remaining challenges. This strategy could enable precise routing of cooling or replenishment fluids directly to regions of highest thermal load while maintaining structural continuity and mechanical robustness. |