| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Elucidating Microstructural Evolution Under Extreme Environments
|
| Presentation Title |
Unraveling Mass Transport Mechanisms During Corrosion and Irradiation in Iron-Based Materials at the Nanoscale |
| Author(s) |
Sandra Taylor, Bethany E Matthews, Aaron A Kohnert, Sten V Lambeets, Matthew J Olszta, Kayla H Yano, Daniel K Schreiber, Blas P Uberuaga, Tiffany C Kaspar |
| On-Site Speaker (Planned) |
Sandra Taylor |
| Abstract Scope |
In this presentation I will discuss mass transport mechanisms during corrosion and irradiation of iron-based metals and oxides at the nanoscale, of broad scientific and applied significance to geochemical, catalytic, and nuclear environments. Specifically, the chemical and microstructural evolution of iron during the early stages of oxidation at the sub-nanometer level is captured by utilizing isotopic tracers combined with correlative high-resolution microscopy techniques, i.e. atom probe tomography and transmission electron microscopy. Fundamental insight into self-diffusion processes as well as high-precision measurements are also gained via in situ atom probe capabilities, monitoring reactions within localized regions of interest such as at surfaces, interfaces, and within defect structures (e.g. grain boundaries). This work highlights challenges for using these approaches, potentially addressable by advanced data analytical techniques, as well as further opportunities for understanding material evolution and degradation under extreme environments. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Characterization, Thin Films and Interfaces |