Effect of Metal Cations in Fresh Water on Surface Film Structure and Initial Corrosion of Mild Steel

AbstractThe influence of metal cations on the ability of gluconates to inhibit corrosion of mild steel in a model fresh water was investigated by electrochemical impedance spectroscopy (EIS) and immersion tests. The EIS and immersion test results showed that the corrosion inhibition of mild steel in model fresh water by gluconates was improved by metal cations that have a large value of corrosion inhibitory effect of cation, Y. The X-ray photoelectron spectroscopy (XPS) analysis showed that metal cations that have larger Y values are bonded on mild steel. It was thought that metal cations with large Y values and gluconates confer a synergistic inhibition effect on the corrosion of mild steel in model fresh water.

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Effects of metal cations on corrosion of mild steel in model fresh water

Corrosion Science ◽

10.1016/j.corsci.2016.05.020 ◽

2016 ◽

Vol 111 ◽

pp. 302-312 ◽

Cited By ~ 14

Author(s):

Kyohei Otani ◽

Masatoshi Sakairi

Keyword(s):

Mild Steel ◽

Fresh Water ◽

Metal Cations

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Inhibition Ability of Gluconates for Fresh Water Corrosion of Mild Steel Enhanced by Metal Cations

Journal of The Electrochemical Society ◽

10.1149/2.0491709jes ◽

2017 ◽

Vol 164 (9) ◽

pp. C498-C504 ◽

Cited By ~ 7

Author(s):

Kyohei Otani ◽

Md. Saiful Islam ◽

Masatoshi Sakairi

Keyword(s):

Mild Steel ◽

Fresh Water ◽

Metal Cations ◽

Inhibition Ability

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Mechanisms of passivation and chloride-induced corrosion of mild steel in sulfide-containing alkaline solutions

Journal of Materials Science ◽

10.1007/s10853-021-06237-x ◽

2021 ◽

Author(s):

Shishir Mundra ◽

John L. Provis

Keyword(s):

Mild Steel ◽

Surface Film ◽

Critical Role ◽

Chloride Concentration ◽

Alkaline Solutions ◽

Sulfide Concentration ◽

Chloride Induced Corrosion ◽

Alkaline Sulfide ◽

High Sulfide

AbstractThe pore fluid within many concretes is highly alkaline and rich in reduced sulfur species, but the influence of such alkaline-sulfide solutions on the surface film formed on steel reinforcement is poorly understood. This study investigates the critical role of HS− in defining mild steel passivation chemistry. The surface film formed on the steel in alkaline-sulfide solutions contains Fe(OH)2 and Fe–S complexes, and the critical chloride concentration to induce corrosion increases at high sulfide concentration. However, this behavior is dependent on the duration of exposure of the steel to the electrolyte, and the nature of the sulfidic surface layer.

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