| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Design and Development of a Refractory Complex Concentrated Alloy for Additive Manufacturing of Advancing Space Propulsion Components |
| Author(s) |
Fuyao Yan, John Aristeidakis, Savya Sachi, David Linder, Ida Berglund |
| On-Site Speaker (Planned) |
Ida Berglund |
| Abstract Scope |
The availability of high-performance materials for extreme environmental conditions (ultra-high service temperature, large temperature differential, reactive propellants, etc.) limits space propulsion efficiency. Refractory complex concentrated alloys (CCAs) offer high thermal stability and, when combined with recent advancements in additive manufacturing (AM) along with computational modeling, enables the development of improved materials solutions and complex structures for enhanced propulsion performance. This talk will address challenges in developing refractory alloys for AM, from powder atomization to processing, and propose future development directions. We will showcase a novel refractory CCA for AM, computationally designed using an integrated computational materials engineering (ICME) methodology. With predictive models and focused experimental trials, only 15 prototype compositions within a 6-element space were needed in the development. The ICME approach accelerated materials design, balancing strength, ductility, oxidation resistance and AM processability. The new AM-processable alloy demonstrates enhanced oxidation resistance compared to Nb-alloys while maintaining similar strength. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Computational Materials Science & Engineering, High-Entropy Alloys |