Synergistic corrosion inhibition on galvanically coupled metallic materials

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abstract

The present paper brings report on a newly observed effect of synergistic corrosion inhibition of galvanically coupled metals by the combination of inhibitors. 1,2,3-Benzotriazole and Ce(NO3)(3) were investigated here as a synergistic inhibiting mixture for Zn + Fe model galvanic couple. Microelectrode array cell specifically designed for investigation of inhibition processes on multi-material galvanic couples was applied for the first time utilising scanning vibrating electrode technique (SVET) as method of galvanic current quantification. The obtained results demonstrate a strong potential of inhibitor combinations for high efficiency suppression of corrosion processes when different inhibition mechanisms are employed at the same time. This effect is observed especially in the cases when the same inhibitor combination does not show synergy on the uncoupled single Zn and Fe metals. (C) 2012 Elsevier B.V. All rights reserved.

keywords

COPPER CORROSION; ALUMINUM-ALLOY; BENZOTRIAZOLE; ZINC; SPECTROSCOPY; EFFICIENCY; MECHANISM; MEDIA; SVET; CELL

subject category

Electrochemistry

authors

Kallip, S; Bastos, AC; Yasakau, KA; Zheludkevich, ML; Ferreira, MGS

our authors

foto António Alexandre Cunha Bastos

António Alexandre Cunha Bastos

Assistant Researcher
foto Kiryl Yasakau

Kiryl Yasakau

Assistant Researcher
foto Mário Guerreiro Silva Ferreira

Mário Guerreiro Silva Ferreira

Retired Professor
foto Mikhail Zheludkevich

Mikhail Zheludkevich

Invited Principal Researcher
foto Silvar Kallip

Silvar Kallip

Assistant Researcher

Groups

G3 - Electrochemical Materials, Interfaces and Coatings

acknowledgements

European FP7 project

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Publication Details

type
Journal Article
year
2012
journal
ELECTROCHEMISTRY COMMUNICATIONS
volume
20
publisher
ELSEVIER SCIENCE INC
issn
1388-2481
digital object identifier
10.1016/j.elecom.2012.04.007
web of science article identifier
WOS:000305875700027

Journal Metrics (JCR 2019)

Journal Impact Factor
4.333
Journal Impact Factor (5 yrs)
4.555
category normalized journal percentile
68.519

Citations

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