NSUF 20-3088: In-situ microstructural evolution and phase transition of irradiated and transient metallic fuel for M&S validation
This proposal supports understanding the microstructural evolution of metallic fuels for advanced reactor concepts under transient conditions via in-situ heating studies of TREAT-irradiated material. The experiments are proposed to be conducted at the Irradiated Material Characterization Laboratory (IMCL) in the Material and Fuel Complex (MFC) of Idaho National Laboratory (INL) in September-October 2020. They will consist of 4 days of sample preparation by Focus Ion Beam (FIB) lift-out technique and 6 days of instrument time on TEM (Transmission Electron Microscope) for characterization and in-situ heating studies. The tests will provide direct observation of the physics of grain growth, re-crystallization, phase transformations, and the effect of stress and irradiation thereupon, all of which is crucial for the validation and parameterization of microstructure evolution models within MARMOT. This type of separate-effects data is needed at low irradiation levels to determine physical mechanisms at play for microstructure evolution, relevant to the further irradiation stage. These data will be used to validate and parameterize microstructure-based models (MARMOT) and to improve M&S tools for physics-based microstructure evolution and fuel performance models for the deployment of advanced fuel (U-Pu-Zr metallic fuels).
Informație Adițională
| Cîmp | Valoare |
|---|---|
| Awarded Institution | Idaho National Laboratory |
| Embargo End Date | 2026-02-27 |
| Facility Tech Lead | Alina Montrose |
| NSUF Call | FY 2020 RTE 2nd Call |
| PI | Andrea Jokisaari |
| PIE Facilities | Irradiated Materials Characterization Laboratory |
| Project Member | Dr. Xiang Liu, Postdoctoral Research Associate - Idaho National Laboratory (https://orcid.org/0000-0002-2634-1888) |
| Project Member | Fidelma Di Lemma - Idaho National Laboratory (https://orcid.org/0002-0852-3098) |
| Project Member | Dr. Fei Teng, Staff Scientist - Idaho National Laboratory (https://orcid.org/0000-0003-3832-9138) |
| Project Member | Dr. Andrea Jokisaari, Computational Scientist - Idaho National Laboratory (https://orcid.org/0000-0002-4945-5714) |
| Project Notes | Awarded on 07/14/2020 |
| Project Type | RTE |
| RTE Number | 3088 |