About this Abstract |
Meeting |
TMS Specialty Congress 2025
|
Symposium
|
3rd World Congress on Artificial Intelligence in Materials & Manufacturing (AIM 2025)
|
Presentation Title |
Unsupervised Learning for Low Dimensional Corrosion Quantification of Aluminum Films |
Author(s) |
Sarah Firestone, Nathan Brown, David Montes de Oca Zapiain, Aditya Venkatraman |
On-Site Speaker (Planned) |
Sarah Firestone |
Abstract Scope |
Environmental corrosion at small length-scales can be assessed by the manual evaluation of topographical images of component surfaces using an Oxford-AFM. However, this process is time-consuming and subject to bias introduced by the researcher. In this work we address these challenges by developing an efficient and data-driven analysis of the images. Our proposed solution involves using unsupervised learning to identify trends of dynamic surface corrosion activity based on 2D topographical images of the samples subjected to harsh environments. Specifically, we leveraged computational techniques such as Generalized Extreme Value Distribution, binarization, spatial correlations, Principal Component Analysis, and K-Means clustering. Our protocols demonstrate excellent efficacy in identifying the evolution of corrosive features, even for previously unseen images. As a result, we have successfully established a continuum of corrosive states within the latent space, which allows for rapid, preemptive identification and facilitates localized mitigation. SNL is managed and operated by NTESS under DOE-NNSA-contract-DE-NA0003525.SANDNo.SAND2024-14510A |
Proceedings Inclusion? |
Undecided |