About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
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Additive Manufacturing of Refractory Metallic Materials
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| Presentation Title |
Functionally Grading Superalloys to Refractory Alloys via Multi-Material Additive Manufacturing |
| Author(s) |
Abdul Sayeed Khan, Brian Jordan, Yousub Lee, James Haley, Christopher Fancher, Soumya Nag |
| On-Site Speaker (Planned) |
Abdul Sayeed Khan |
| Abstract Scope |
Nickel based super alloys and niobium based refractory alloys provide high-temperature strength, wear, and corrosion resistance apt for aero-engine components, power generation equipment, and nuclear reactors. However, the monolithic nature of such alloys can only be exploited for medium-to-high temperatures (IN718 alloy) and high-to-extremely high temperatures (C103 alloy) as a unitary system. In order achieve a combined capability of medium-to-extremely high temperatures, these material systems present complexities among the alloying elements and form intermetallic compounds of Ni, Nb, Al, and Ti responsible for uncontrolled brittle fracture. Leveraging the customizability of powder based directed energy deposition (DED) process, this research will present a spatial gradation of IN718 to C103 alloy to achieve a functionally graded material (FGM) system. A preliminary analyses of intermediary alloying elements to achieve a functionally graded material will be discussed with their effect on intermetallic phases, microstructure, mechanical properties and residual stresses induced during the additive builds. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Additive Manufacturing, Powder Materials |