NSUF 11-292: Radiation stability and integrity of amorphous metal alloys for applications in harsh environments
The project is aimed to identify the governing factors which influence crystallization process in ion irradiated metallic glasses (MG), with an ultimate goal to develop MGs with super radiation tolerance for applications in corrosive and radioactive environments. As amorphous solids without ordered crystalline structures, Cu and Zr based MGs have attracted serious attention for potential applications in harsh environments, i.e., as coating for spent fuel containers. Although MGs possess super corrosion resistance, their radiation responses have not been studied to any significant extent. Effects of irradiation on MGs’ microstructral changes, phase transition and nanocrystalization, as well as the impact of these changes on materials’ corrosion resistance, mechanical property and the overall integrity need to be systematically studied. The project will utilize irradiation facility at the Texas A&M University and post irradiation examination (PIE) at Idaho National Laboratory. Composition engineered MGs will be irradiated by accelerators under various conditions. Microstructural characterization using transmission electron microscope (TEM) as well as synchrotron x-ray diffraction and nanoindentation will be used to extract kinetics and phase information in segregation, nucleation, and crystallization.
Additional Info
| Field | Value |
|---|---|
| Abstract | The project is aimed to identify the governing factors which influence crystallization process in ion irradiated metallic glasses (MG), with an ultimate goal to develop MGs with super radiation tolerance for applications in corrosive and radioactive environments. As amorphous solids without ordered crystalline structures, Cu and Zr based MGs have attracted serious attention for potential applications in harsh environments, i.e., as coating for spent fuel containers. Although MGs possess super corrosion resistance, their radiation responses have not been studied to any significant extent. Effects of irradiation on MGs’ microstructral changes, phase transition and nanocrystalization, as well as the impact of these changes on materials’ corrosion resistance, mechanical property and the overall integrity need to be systematically studied. The project will utilize irradiation facility at the Texas A&M University and post irradiation examination (PIE) at Idaho National Laboratory. Composition engineered MGs will be irradiated by accelerators under various conditions. Microstructural characterization using transmission electron microscope (TEM) as well as synchrotron x-ray diffraction and nanoindentation will be used to extract kinetics and phase information in segregation, nucleation, and crystallization. |
| Award Announced Date | 2011-04-20T00:00:00 |
| Awarded Institution | Idaho National Laboratory |
| Facility | Advanced Test Reactor |
| Facility Tech Lead | Alina Zackrone, Yaqiao Wu |
| Irradiation Facility | None |
| PI | Lin Shao |
| PI Email | [email protected] |
| Project Type | RTE |
| RTE Number | 292 |