journal article·2025-05-03Open access

Unsupervised process monitoring of corrosion based on electrochemical noise and multivariate image analysis

Ahmed Abdulmutaali, Chris Aldrich, Katerina Lepkova

npj Materials Degradation· Volume 9· Issue 1

Abstract

Electrochemical noise (EN) is a crucial technique in the monitoring of corrosion systems due to its ability to provide real-time, non-intrusive insights into the corrosion process. By measuring the spontaneous fluctuations in voltage and current that occur naturally in a corroding system, EN allows for the detection of localised corrosion events, such as pitting, without the need for external perturbation. In this investigation, a multivariate statistical process monitoring framework (MSPC) based on the use of deep learning models and principal component analysis (PCA) is proposed. Electrochemical noise associated with uniform corrosion is segmented with a sliding window, with the segments converted to images from which features are extracted with deep learning models. Finally, these features are used to construct a principal component model that can be used to detect deviations from uniform corrosion.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Non-Destructive Testing Techniques · Fault Detection and Control Systems · Hydrogen embrittlement and corrosion behaviors in metals

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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