About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Multiple Principal Component Materials
|
| Presentation Title |
Probing irradiation-induced void swelling in CrFeMnNi compositionally complex alloys using high-throughput irradiation and characterization methods |
| Author(s) |
Nathan Curtis, Michael Moorehead, Mukesh Bachhav, Benoit Queylat, Phalgun Nelaturu, Daniel Murray, Bao-Phong Nguyen, Nate Eklof, Zack Rielley, Dan Thoma, Dane Morgan, Adrien Couet |
| On-Site Speaker (Planned) |
Nathan Curtis |
| Abstract Scope |
Compositionally complex alloys (CCAs) are of interest as potential structural alloys in advanced nuclear reactor concepts due to reports of resistance to microstructural damage under irradiation and potential for strong mechanical performance at operational reactor temperatures. Due to the uniquely flexible alloy design space for CCAs a majority of the compositional space has been left unexplored, which poses a challenge for the researchers designing irradiation-tolerant CCAs. To remedy this, this work studies the influence of composition on irradiation-induced void swelling for 100 unique alloys from the CrFeMnNi quaternary system. To achieve this, the high-throughput beamline at the University of Wisconsin’s Ion Beam Lab was used to irradiate each sample up to 150 displacements per atom at 600-625 °C. A novel quantification method using 2D cross-section images to predict volumetric void swelling has been developed to rapidly down select for samples of interest, which were characterized further with transmission electron microscopy. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, High-Entropy Alloys, Nuclear Materials |