Coulostatic-Based Research on Corrosion Inhibition Mechanism of Three Inhibitors for Hot Dipped Coating Steels

Hong Ju; Yan Li

doi:10.4028/www.scientific.net/AMM.229-231.87

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 229-231Coulostatic-Based Research on Corrosion Inhibition...

Coulostatic-Based Research on Corrosion Inhibition Mechanism of Three Inhibitors for Hot Dipped Coating Steels

Abstract:

The corrosion inhibition mechanism of three inhibitors for hot dipped coating steels in HCl acid was studied by coulostatic method. The results showed that the anodic Tafel slope ba and cathodic Tafel slope bc significantly increased with increasing of corrosion inhibitor concentration. While the corrosion current density Icorr decreases with the corrosion inhibition concentration increasing. And the inhibition efficiency increased with the inhibitor concentration. The inhibiting action of these compounds were attributed to blocking of the electrode surface by adsorption through its active centers. The three inhibitors were both mixed inhibitors, and reacted as good inhibition by the adsorption of the active sites in the cathodic reaction and the anodic reaction of corrosion process.

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Periodical:

Applied Mechanics and Materials (Volumes 229-231)

Pages:

87-90

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.229-231.87

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Online since:

November 2012

Authors:

Hong Ju, Yan Li

Keywords:

Corrosion, Coulostatic, Inhibitor, Polarization

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