| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nanostructured Materials in Extreme Environments II
|
| Presentation Title |
Effect of Neutron Irradiation on Microstructure and Mechanical Properties of Nanocrystalline Nickel |
| Author(s) |
Ramprashad Prabhakaran, Kayla Yano, Dan Edwards, Stuart Andrew Maloy, Korukonda L Murty |
| On-Site Speaker (Planned) |
Ramprashad Prabhakaran |
| Abstract Scope |
During irradiation, various types of defects are produced because of displacement cascades. Because grain boundaries act as sinks for irradiation-induced point defects, it is hypothesized that nanocrystalline (NC) materials would possess enhanced radiation resistance compared to conventional micrograined materials. As a part of an NSUF Irradiation Experiment, conventional and nanograined Cu, ECAP steel and Ni were irradiated in ATR (1 and 2 dpa). These materials were selected to investigate the effect of crystal structure (FCC vs BCC) as well as stacking fault energy (Cu vs Ni). Among these 3 materials, work was completed on Cu and ECAP steel which clearly revealed the influence of ultra-fine grain size on radiation hardening. Efforts are ongoing to investigate the changes in mechanical properties, grain size and microstructures of irradiated Ni with particular attention to examine whether nanograined Ni is relatively more radiation resistant compared to conventional grained Ni and NC copper. |
| Proceedings Inclusion? |
Planned: |