Zairyo-to-Kankyo
Online ISSN : 1881-9664
Print ISSN : 0917-0480
ISSN-L : 0917-0480
Review
Various Electrochemical Approaches for Corrosion Engineering
Tooru Tsuru
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2010 Volume 59 Issue 11 Pages 404-409

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Abstract

Various electrochemical methods and approaches adopted by the author's group to analyze corrosion phenomena, corrosion mechanisms and corrosion rate monitoring are introduced. Basic ideas and approaches are described on application of electrochemical impedance for corrosion research and corrosion monitoring system, to apply electrochemistry for simulating and measuring atmospheric corrosion, and to apply channel flow electrode for analyzing anodic dissolution mechanisms. It is clearly shown that zinc ion dissolved from corrosion products on zinc coated steel prevents further corrosion of steel substrate. New hot dipped coating for steel, Al-Mg-Si alloy proposed by the author, has beneficial effect for hydrogen embrittlement of high strength steel during sacrificial action, since its sacrificial potential is much higher than that of zinc as −1.0 V.

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© 2010 Japan Society of Corrosion Engineering
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