| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Elucidating Microstructural Evolution Under Extreme Environments
|
| Presentation Title |
Effects of Grain Size on Microstructural Evolution of a FeCrAl System After Neutron Irradiation |
| Author(s) |
Joshua Rittenhouse, Mukesh Bachav, Laura Hawkins, Sohail Shah, Cameron Howard, David Frazer, Nedim Cinbiz, Haiming Wen, Tiankai Yao |
| On-Site Speaker (Planned) |
Joshua Rittenhouse |
| Abstract Scope |
FeCrAl alloys with their enhanced corrosion resistance at elevated temperatures are being investigated with the prospective to replace Zr based alloys in nuclear fuel cladding applications. With the premise being that grain boundaries act as sinks for irradiation induced defects, grain refinement including nanostructuring presents a potential means of improving irradiation resistance of such a material in a nuclear reactor environment. Samples of Kanthal D (Fe-21Cr-5Al) have been processed using multiple techniques of severe plastic deformation to represent different grain sizes ranging from ~75 nm to 40 µm. These samples were irradiated in the advanced test reactor (ATR) to a dose of 2 DPA at 300 °C and 500 °C. Through characterization including mechanical testing, transmission electron microscopy, and atom probe tomography, differences in irradiation damage effects including radiation induced segregation relative to grain size and irradiation condition will be presented. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Characterization, Environmental Effects |