About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Cutting-Edge Characterization and Electrochemical Techniques for Unraveling Corrosion Phenomena
|
| Presentation Title |
Quantitative 3D Analysis of Void Morphology of Molten-Salt Corrosion |
| Author(s) |
Lei Ding, Weiyue Zhou, Yang Yang |
| On-Site Speaker (Planned) |
Lei Ding |
| Abstract Scope |
Molten salt corrosion presents a major challenge for structural materials in advanced nuclear systems. Conventional techniques, such as weight loss measurements, fail to capture the complex morphology of corrosion damage. Here, we establish a new framework for corrosion quantification based on 2D and 3D morphological analysis. Building on our earlier identification of one-dimensional (1D) grain boundary corrosion in Ni-20Cr, we extend our study to commercial alloys SS316 and Incoloy-800H. Using focused ion beam (FIB) tomography, and machine-learning assisted image analysis, we compare the depth-dependent corrosion morphologies across different three Ni-based alloys. All materials exhibit hybrid 1D-2D corrosion morphologies. In addition, we developed three methods to decouple 1D and 2D void morphologies quantitatively. Our results demonstrate the necessity of full-3D, quantitative analysis for the mechanistic understanding of metal corrosion in extreme environments. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, |