About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Developments in Advanced Nuclear Structural Materials
|
| Presentation Title |
Accelerated Development of High-Performance Alloys for Fission and Fusion Energy |
| Author(s) |
Steven J. Zinkle, Ying Yang, Jay Tiley, Ryan Thier, Ashley Lee |
| On-Site Speaker (Planned) |
Steven J. Zinkle |
| Abstract Scope |
The extreme operating environments for proposed fusion and next-generation fission reactors encompass significantly higher operating temperatures and displacement damage levels for structural materials compared to historical light water reactors. This presentation will review recent progress on development and industrial scale-up of three candidate high-performance structural materials: carbide precipitate strengthened Fe-9%Cr castable nanostructured alloy (CNA), precipitate strengthened V-4%Cr-4%Ti alloy, and precipitate strengthened Ni alloy. The CNA alloy is a candidate for fusion and sodium-cooled fast reactors, the V alloy is a candidate for fusion and potential space nuclear (fission) power systems, and the Ni alloy is a candidate for molten salt reactors. Tensile and thermal creep testing demonstrate significant mechanical property improvements compared to historical ferritic/martensitic steels, V alloys and Ni alloys considered for nuclear energy applications. Progress on industrial scaleup, mechanical properties, microstructural stability under ion irradiation, and chemical compatibility will be reviewed. |
| Proceedings Inclusion? |
Planned: |