| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Radiation Effects in Metals and Ceramics
|
| Presentation Title |
H-52: Irradiation Induced Damage Evolution in Tungsten |
| Author(s) |
Trevor Clark, Suveen Mathaudhu, Samuel Briggs, Robert J. Dowding, Jason Trelewicz, Khalid Hattar |
| On-Site Speaker (Planned) |
Trevor Clark |
| Abstract Scope |
The extreme radiation and thermal environments that plasma facing materials for nuclear fusion energy applications are difficult to experimentally explore making it difficult to elucidate the underlying mechanisms or develop predictive modeling. This presentation will present the in-situ ion irradiation transmission electron microscope and the recently developed in-situ ion irradiation scanning electron microscope that have been developed at Sandia to explore these combinations of extreme environments. Initial TEM and SEM results investigating the response of tungsten as a function of processing and microstructure under isolated and combined heating (>1,000 °C), low energy helium implantation, and displacement damage events will be highlighted and compared to the current literature. The effects of grain morphology on surface damage evolution are explored. SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |