| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Accelerated Qualification of Nuclear Materials Integrating Experiments, Modeling, and Theories
|
| Presentation Title |
Three-dimensional Quantitative Defect Analysis in Tungsten Heavy Alloys Under the Simulated Nuclear Fusion Environment |
| Author(s) |
James V. Haag, Midori Ikeuchi, Matthew Olszta, Weilin Jiang, Danny Edwards, Mitsu Murayama, Wahyu Setyawan |
| On-Site Speaker (Planned) |
James V. Haag |
| Abstract Scope |
To understand the nature of materials behavior and degradation in the fusion environment, it is necessary to simulate and observe the characteristic damage under high temperature irradiation. To do this, a tungsten heavy alloy was sequentially ion irradiated (Ni+ and He+) at elevated temperatures to mimic the fusion environment; then characterized via a novel approach for quantitative damage analysis in these materials. This method employs a multi-projection based reconstruction technique yielding a 3D reconstruction of the characteristic irradiation damage structures within grain interiors as well as at interfaces. This approach allows for the deconvolution of projection-based effects in scanning/transmission electron microscopy (S/TEM) analyses, and produces a three-dimensional view of the specimen which is employed in damage identification and quantification. Data collection in this way yields a more robust framework in post-irradiation examination analyses and produces a directly interpretable view of the complex nature of irradiation damage in multiphase materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Characterization, Composites |