| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Refractory Metals 2023
|
| Presentation Title |
Concurrent Design of a Multimaterial Niobium Alloy System for Next-generation Turbine Applications |
| Author(s) |
Pin Lu, James Male, Zhi Liang, Peter Jacobson, Jiadong Gong, Greg Olson |
| On-Site Speaker (Planned) |
Pin Lu |
| Abstract Scope |
QuesTek Innovations and team are designing and developing a comprehensive solution for a next-generation turbine blade alloy and coating system capable of sustained operation at 1300°C. Concurrent design of material and component is proposed to accelerate adoption of the designed materials into next-generation engines. QuesTek is applying its ICME-based models and extensive materials design experience to design a niobium (Nb)-based multi-material alloy system consisting of a ductile, precipitation-strengthened, creep-resistant alloy for the turbine “core” combined with an oxidation-resistant, bond coat-compatible Nb alloy for the “case.” Leveraging additive manufacturing techniques such as directed energy deposition enables fabrication of a turbine blade structure with composition and microstructure tailored to provide location-specific properties, resolving the inherent conflict between mechanical performance and oxidation resistance. The multi-material Nb alloy will achieve a combination of properties suitable for a variety of gas or industrial turbine components such as blade, vane, and panel structures. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
ICME, Additive Manufacturing, High-Temperature Materials |