About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Developments in Advanced Nuclear Structural Materials
|
| Presentation Title |
Understanding the Oxide Precipitation in PM-HIP FeCrAl Alloy and Its Effect on Mechanical Properties |
| Author(s) |
Khaled Eltoukhy, Ronit Roy, Zijun Su, Caleb Massey, R. Edwin García, Janelle Wharry, Maria A. Okuniewski |
| On-Site Speaker (Planned) |
Khaled Eltoukhy |
| Abstract Scope |
FeCrAl alloys fabricated via powder metallurgy with hot isostatic pressing (PM-HIP) are promising candidates for fuel cladding and high-temperature applications due to their superior oxidation resistance and mechanical properties compared to traditional zirconium alloys. The PM-HIP process enables the production of modular, near-net shape components with minimal post-processing. Prior research has focused on the mechanical properties, irradiation response, and corrosion/oxidation resistance of FeCrAl. However, the influence of HIP parameters on the oxide inclusion and porosity remains understudied. This study investigates the effect of the HIP parameters, specifically pressure (100 and 150 MPa) and temperature (750°C, 850°C, 950°C, and 1050°C), on the microstructure and mechanical properties of FeCrAl alloys. Key microstructural features, including oxide morphology and formation, grain size, prior particle boundaries, and porosity, are characterized using scanning electron microscopy, electron dispersive x-ray spectroscopy, x-ray diffraction, and electron backscatter diffraction to assess their relationship to mechanical performance. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Iron and Steel, Nuclear Materials |