Two-dimensional quantification of the corrosion process in metal surfaces using digital speckle pattern interferometry

The applicability of digital speckle pattern interferometry (DSPI) to the analysis of surface corrosion processes has been evaluated by studying the evolution of an Fe surface immersed in sulfuric acid. This work describes the analysis process required to obtain quantitative information about the co...

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Bibliographic Details
Published in:Applied optics. Optical technology and biomedical optics 2011-04, Vol.50 (10), p.1323
Main Authors: Andrés, N, Lobera, J, Arroyo, M P, Angurel, L A
Format: Article
Language:English
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Summary:The applicability of digital speckle pattern interferometry (DSPI) to the analysis of surface corrosion processes has been evaluated by studying the evolution of an Fe surface immersed in sulfuric acid. This work describes the analysis process required to obtain quantitative information about the corrosion process. It has been possible to evaluate the corrosion rate, and the results agree with those derived from the weight loss method. In addition, a two-dimensional analysis has been applied, showing that DSPI measurements can be used to extract information about the corrosion rate at any region of the surface.
ISSN:2155-3165
DOI:10.1364/AO.50.001323