About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Lightweight Alloy Matrix Composites
|
| Presentation Title |
Evaluation of Oxide-Matrix Interactions in Oxide Dispersion Strengthened Aluminum Alloys Produced Through Laser Powder Bed Fusion |
| Author(s) |
Benjamin M. Glaser, Joshua Stuckner, S. Mohadeseh Taheri-Mousavi |
| On-Site Speaker (Planned) |
Benjamin M. Glaser |
| Abstract Scope |
Oxide dispersion strengthening (ODS) is a promising pathway to enhancing high-temperature performance for additively manufactured components, having achieved 1000-times creep life extension in a Ni-based multi-principle element alloys (MPEAs) by coating metal powder with oxide particles. Another candidate system is aluminum (Al) alloys; a lightweight, low-cost structural component. We recently developed a high-strength Al-alloy with high-temperature stable strengthening features and identified ODS as an interesting method for further enhancement while retaining strength and cost advantages. To evaluate this, a model printable Al-system was coated with yttria particles and a high-throughput experimental workflow, combined with Bayesian optimization, was leveraged to achieve dense and hard printed components. Printed parts were subject to tensile tests and room and elevated temperature (250C), where we observed a 15% increase to tensile strength at both conditions. Using scanning and transmission electron microscopies and atom probe tomography, we evaluated the oxide dispersion and source of strengthening. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
ICME, Additive Manufacturing, Aluminum |