| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Seaborg Institutes: Emerging Topics in Actinide Sciences
|
| Presentation Title |
Thermo-Kinetics of Impurities in Uranium Alloys |
| Author(s) |
Emily E. Moore, Adrian Gonzales, Jibril Shittu, Joseph Boro, Nicholas Ury, Kyoung Kweon, Bradley C. Childs |
| On-Site Speaker (Planned) |
Adrian Gonzales |
| Abstract Scope |
An inherent need exists to understand degradation mechanisms presented by impurities in uranium alloys. Insight into underlying thermodynamics and kinetics of deleterious precipitate phases within U-Ti-Nb-C-X system is key to inform materials properties.. A comprehensive understanding of the driving forces for carbide formation, distribution and migration is lacking. We present an integrated framework to provide insight into the physics and chemistry to predict impurity and alloying effects in γ-stabilized (BCC) uranium using a tailored experimental and multiscale CALPHAD-based modeling approach. Predictive models beyond equilibrium thermodynamics guide this work toward productive routes that allow for the exploration between thermodynamic and kinetic driving forces responsible for impurity formation. A dedicated experimental component consisting of synthesis and characterization of uranium alloys to elucidate both thermodynamic and kinetic information of impurity phases will be presented.
Prepared by LLNL under Contract DE-AC52-07NA27344 and supported by LLNL-LDRD program under Project No. 24-ERD-028. |
| Proceedings Inclusion? |
Planned: |