| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Computational Design of Graded Refractory Metal Structures |
| Author(s) |
Bernard Gaskey, Omar Mireles |
| On-Site Speaker (Planned) |
Bernard Gaskey |
| Abstract Scope |
The unique properties of refractory metals are vital for many aerospace components, but high price and manufacturing challenges provide strong drivers to minimize the use of many refractory alloys. Rather than monolithic refractory parts, an emerging alternative is to use compositionally graded or multi-material designs which optimize material efficiency. Here, we present a combined development approach coupling advances in computational thermodynamics and additive manufacturing to rapidly design and fabricate prototype structures. We demonstrate the combinatorial capability of CALPHAD tools to rapidly screen a wide range of compositionally complex alloys for intermetallic compound formation. We identify stable composition gradients between Nb and Mo based refractory alloys and structural metals including Ti and Ni superalloys. These composition pathways allow production of graded parts that minimize utilization of expensive refractory components while maintaining key material properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Computational Materials Science & Engineering, |