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Vol. 34, No. 8(3), S&M3042

Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials, Volume 34, Number 3(1) (2022)
Copyright(C) MYU K.K.
pp. 915-925
S&M2862 Research Paper of Special Issue
https://doi.org/10.18494/SAM.2021.3448
Published in advance: August 5, 2021
Published: March 3, 2022

In situ Visualization of Ferrous Ions Dissolved from Pure Iron Wire into Thin Frozen Aqueous Solution Films by Combination of Microscopy and Image Processing [PDF]

Arinori Inagawa, Minami Maeda, and Nobuo Uehara

(Received May 30, 2021; Accepted July 22, 2021)

Keywords: iron, corrosion, thin ice layer, freeze-concentrated solution, image processing

The dissolution of ferrous ions from pure iron into freeze-concentrated solutions (FCSs) formed in thin films of aqueous salt solutions was visualized by a combination of in situ diffusive-reflection microscopy and image processing. An iron surface in contact with an FCS was observed with a diffusive-reflection microscope. Ferrous ions dissolved from the iron surface were complexed with 1,10-phenanthroline doped in the ice film to develop reddish complexes. In situ observation enabled us to monitor the dissolution and migration behavior of ferrous ions in the FCS. Processing of the acquired microscopic images enabled quantitative mapping of the dissolved ferrous ions. The present approach has the potential for fast screening to assess the corrosion behavior of steel materials in contact with frozen aqueous electrolytes.

Corresponding author: Arinori Inagawa, Nobuo Uehara


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This work is licensed under a Creative Commons Attribution 4.0 International License.

Cite this article
Arinori Inagawa, Minami Maeda, and Nobuo Uehara, In situ Visualization of Ferrous Ions Dissolved from Pure Iron Wire into Thin Frozen Aqueous Solution Films by Combination of Microscopy and Image Processing, Sens. Mater., Vol. 34, No. 3, 2022, p. 915-925.



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