About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-97: Thermal Processing of Castable Nanostructured Alloys |
| Author(s) |
Emilia Cueva, Eric Lass |
| On-Site Speaker (Planned) |
Emilia Cueva |
| Abstract Scope |
Castable nanostructured alloys (CNAs) are a class of reduced-activation ferritic/martensitic (RAFM) steels under development for nuclear applications. These materials utilize a high density of MX (M = Ta/Ti/V, X = C/N) precipitates to improve high-temperature creep strength and increase vacancy sink density for enhanced irradiation resistance. The high solvus temperature of MX precipitates requires careful control of normalization conditions, as excessive austenite grain growth can raise the ductile-to-brittle transition temperature above room temperature. In this work, industrial-scale normalization is mimicked by controlling the ramp rate to the normalization temperature. Clear trends are observed between processing temperature, prior austenite grain size evolution, and microhardness. These observations provide insight into how microstructure and properties can evolve during commercial-scale production, helping to bridge the gap between laboratory-scale studies and real-world processing conditions. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Nuclear Materials, Iron and Steel, Phase Transformations |