| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior of Nuclear Reactor Components
|
| Presentation Title |
Creep Behavior of Helium Implanted Submicron Films under Irradiation |
| Author(s) |
Nargisse Khiara, Michaël Coulombier, Fabien Onimus, Jean-Pierre Raskin, Thomas Pardoen, Yves Bréchet |
| On-Site Speaker (Planned) |
Nargisse Khiara |
| Abstract Scope |
The materials used for nuclear applications undergo intense neutron irradiation that induces the formation of irradiation defects, the production of helium and the emergence of physical phenomena such as irradiation creep. The irradiation creep deformation, and the underlying mechanisms, in the presence of helium has been little investigated. The mechanical behavior of 1% and 7% helium implanted copper is first determined using both a novel approach based on the testing of on-chip thin freestanding structures developed at Université catholique de Louvain and nano-indentation. The on-chip He-implanted structures are then used to determine the irradiation creep behaviour under heavy ion irradiation. The small thickness of the material, below a few hundreds nanometers, allow full and homogenous irradiation by helium ions and heavy ions of a few hundreds keV. In parallel to these nanomechanical tests, the microstructure of the copper film before and after irradiation is characterized by Transmission Electron Microscopy. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Thin Films and Interfaces, Mechanical Properties |