About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Interrelated Extremes in Materials Degradation for Fission and Fusion Environments
|
| Presentation Title |
Combined experimental, simulation and computer vision analysis of irradiated microstructure |
| Author(s) |
James Heath, Daniel Robert Mason, Max Boleininger, Jack Haley, Sergei Dudarev |
| On-Site Speaker (Planned) |
James Heath |
| Abstract Scope |
We compare experimental observations, and atomistic modelling, of irradiated microstructure using real and simulated[1] Transmission Electron Microscopy (TEM). We perform large, ~100 million atom, overlapping cascade molecular dynamic (MD) simulations of pure Zirconium, and compare the distribution of defects reported by DXA, to the observed microstructure in simulated TEM. A further comparison is then made to experiment with in situ TEM performed on heavy-ion irradiated Zirconium foils at cryogenic temperatures. Micrographs (experimental and simulated) have been analysed quantitatively using an open-source image processing library CLOCK[2]. CLOCK uses a computer vision approach to denoise and reconstruct the image signal with overlapping 2-d Gaussians requiring little or no human input. We discuss where the identification of loops is accurate, and not so good, and make a quantitative comparison between the predictive modelling and experimentally observed microstructure.
[1] https://doi.org/10.1016/j.actamat.2024.120162
[2] https://github.com/ukaea/CLOCK/ |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Characterization, Nuclear Materials |