Dynamic Sensing of Localized Corrosion at the Metal/Solution Interface

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ID: 114915
2012
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Abstract
A Mach-Zehnder interferometer is employed to detect localized corrosion at the metal/solution interface in the potentiodynamic sweep of the iron electrode in solutions. During the electrochemical reactions, local variations of the electrolyte’s refractive index, which correlate with the concentration of dissolved species, change the optical path length (OPL) of the object beam when the beam passes through the electrolyte. The distribution of the OPL difference was obtained to present the concentration change of the metal ions visually, which enable direct evidence of corrosion processes. The OPL difference distribution shows localized and general corrosion during the anodic dissolution of the iron electrode in solutions with and without chloride ions, respectively. This method provides an approach for dynamic detection of localized corrosion at the metal/solution interface.
Reference Key
li2012sensorsdynamic Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Wei Li;Boyu Yuan;Chao Wang;Liang Li;Shenhao Chen;Li, Wei;Yuan, Boyu;Wang, Chao;Li, Liang;Chen, Shenhao;
Journal sensors
Year 2012
DOI
10.3390/s120404962
URL
https://www.mdpi.com/1424-8220/12/4/4962#citedby
Keywords
interfaces localized corrosion mach-zehnder interferometer

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