Open AccessA Non-Intrusive System to Classify the Severity of Damages Caused by Internal Corrosion Using the Potential Drop Technique and Electrical Image Mapping
Author(s) -
George Leandro dos Santos Pinto,
Jorge Amaral,
Gil Pinheiro,
Victor Gomes Silva,
José Antônio da Cunha Ponciano Gomes
Publication year - 2020
Publication title -
journal of integrated circuits and systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.125
H-Index - 11
eISSN - 1872-0234
pISSN - 1807-1953
DOI - 10.29292/jics.v15i3.181
Subject(s) - damages , corrosion , artificial intelligence , extractor , voltage drop , segmentation , image processing , drop (telecommunication) , binary classification , finite element method , image segmentation , computer science , materials science , pattern recognition (psychology) , structural engineering , image (mathematics) , engineering , metallurgy , mechanical engineering , support vector machine , process engineering , electrical engineering , voltage , political science , law
This work presents a non-intrusive method to obtain information about damages caused by internal corrosion in a stainless-steel plate and classify them according to their severity. The Potential Drop technique provides an electric potential gradient map, which is analyzed by the application of image processing techniques, such as morphological analysis and segmentation. Some corrosion forms can be detected by this method, like cracks and pitting corrosion; the last one is discussed in this paper. Finite Element Modeling simulations were performed to get examples of defective plates (with five classes of damages). The image processing in the simulations acts as a feature extractor that feeds a classifier based on Random Forests algorithm, which accuracy was 91.45% and precision 91.22%.
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