| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Microstructural, Mechanical and Chemical Behavior of Solid Nuclear Fuel and Fuel-cladding Interface
|
| Presentation Title |
Scaling laws in nanoindentation investigation of metallic uranium alloys |
| Author(s) |
Tianyi Chen, Gavin Vandenbroeder, Tzu-Yi Chang, David M Frazer, Yushu Dewen, Stephanie Pitts, Tiankai Yao |
| On-Site Speaker (Planned) |
Tianyi Chen |
| Abstract Scope |
Understanding the creep on nuclear fuel and structural materials is essential for safe reactor operation. The challenges with conventional mechanical testing are the long time-scales and high radiation levels from the large samples. Nanoindentation measurements hold promise in obtaining microstructure-specific material properties at significantly reduced times. However, work still needs to be done to allow information extraction from nanoindentation measurements for mechanistic model input. Combining modeling and nanoindentation measurements at different loading rates, the deformation and evolution between plastic and elastic deformation were examined to illustrate the governing spatial and temporal scaling laws under nanoindentation stress relaxation. This understanding gives insights into the deformation process and promotes the application of novel nanoindentation methodologies to accelerated materials testing. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Nuclear Materials, Characterization |