Comparison of corrosion-resistance and hydrogen permeation properties of Zn-Ni, Zn-Ni-Cd and Cd coatings on low-carbon steel

Hansung Kim; Branko N. Popov; Ken S. Chen

doi:10.1016/S0010-938X(02)00228-7

Comparison of corrosion-resistance and hydrogen permeation properties of Zn-Ni, Zn-Ni-Cd and Cd coatings on low-carbon steel

Hansung Kim, Branko N. Popov, Ken S. Chen

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

63 Citations (Scopus)

Abstract

Zn-Ni-Cd alloy was electroplated from an alkaline sulfate bath under potentiostatic conditions. The corrosion and hydrogen permeation characteristics of Zn-Ni-Cd alloy coatings electrodeposited from alkaline bath were studied and compared with those of Cd and Zn-Ni coatings obtained using commercial baths. Zn-Ni-Cd alloy was electroplated from an alkaline sulfate bath under potentiostatic conditions. The corrosion potential of this Zn-Ni-Cd coating was -0.62 V vs. SCE, which is still negative potential compared to iron. The corrosion rate of Zn-Ni-Cd coated steel was 0.073 mm y^-1, which is estimated in a 0.5 M Na₂SO₄ + 0.5 M H₃BO₃ solution at a pH of 7. This value is much lower than the corrosion rate of Zn-Ni alloy (0.502 mm y^-1) and Cd (0.306 mm y^-1) coatings deposited from commercial baths. Zn-Ni-Cd alloys are also demonstrated to have superior hydrogen permeation inhibition properties compared to Cd and Zn-Ni coatings. Kinetic parameters of hydrogen permeation such as the transfer coefficient, α, the modified exchange current density, i′₀, thickness dependent adsorption-absorption rate constant, k″, recombination rate constant, k₃, surface hydrogen coverage, θ_s, were evaluated by applying a mathematical model to analyze experimental results.

Original language	English
Pages (from-to)	1505-1521
Number of pages	17
Journal	Corrosion Science
Volume	45
Issue number	7
DOIs	https://doi.org/10.1016/S0010-938X(02)00228-7
Publication status	Published - 2003 Jul

Bibliographical note

Funding Information:
Financial Support by Dr. Vinod Agarvala, the Office of Naval Research under Grant no. N00014-00-1-0053 and AESF Research Contract, Project 107 are gratefully acknowledged. This work was also partially supported by Sandia National Laboratories. Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under contract DE-AC04-94-AL85000.

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

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10.1016/S0010-938X(02)00228-7

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title = "Comparison of corrosion-resistance and hydrogen permeation properties of Zn-Ni, Zn-Ni-Cd and Cd coatings on low-carbon steel",

abstract = "Zn-Ni-Cd alloy was electroplated from an alkaline sulfate bath under potentiostatic conditions. The corrosion and hydrogen permeation characteristics of Zn-Ni-Cd alloy coatings electrodeposited from alkaline bath were studied and compared with those of Cd and Zn-Ni coatings obtained using commercial baths. Zn-Ni-Cd alloy was electroplated from an alkaline sulfate bath under potentiostatic conditions. The corrosion potential of this Zn-Ni-Cd coating was -0.62 V vs. SCE, which is still negative potential compared to iron. The corrosion rate of Zn-Ni-Cd coated steel was 0.073 mm y-1, which is estimated in a 0.5 M Na2SO4 + 0.5 M H3BO3 solution at a pH of 7. This value is much lower than the corrosion rate of Zn-Ni alloy (0.502 mm y-1) and Cd (0.306 mm y-1) coatings deposited from commercial baths. Zn-Ni-Cd alloys are also demonstrated to have superior hydrogen permeation inhibition properties compared to Cd and Zn-Ni coatings. Kinetic parameters of hydrogen permeation such as the transfer coefficient, α, the modified exchange current density, i′0, thickness dependent adsorption-absorption rate constant, k″, recombination rate constant, k3, surface hydrogen coverage, θs, were evaluated by applying a mathematical model to analyze experimental results.",

author = "Hansung Kim and Popov, {Branko N.} and Chen, {Ken S.}",

note = "Funding Information: Financial Support by Dr. Vinod Agarvala, the Office of Naval Research under Grant no. N00014-00-1-0053 and AESF Research Contract, Project 107 are gratefully acknowledged. This work was also partially supported by Sandia National Laboratories. Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under contract DE-AC04-94-AL85000. ",

year = "2003",

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doi = "10.1016/S0010-938X(02)00228-7",

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AU - Kim, Hansung

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AU - Chen, Ken S.

N1 - Funding Information: Financial Support by Dr. Vinod Agarvala, the Office of Naval Research under Grant no. N00014-00-1-0053 and AESF Research Contract, Project 107 are gratefully acknowledged. This work was also partially supported by Sandia National Laboratories. Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under contract DE-AC04-94-AL85000.

PY - 2003/7

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N2 - Zn-Ni-Cd alloy was electroplated from an alkaline sulfate bath under potentiostatic conditions. The corrosion and hydrogen permeation characteristics of Zn-Ni-Cd alloy coatings electrodeposited from alkaline bath were studied and compared with those of Cd and Zn-Ni coatings obtained using commercial baths. Zn-Ni-Cd alloy was electroplated from an alkaline sulfate bath under potentiostatic conditions. The corrosion potential of this Zn-Ni-Cd coating was -0.62 V vs. SCE, which is still negative potential compared to iron. The corrosion rate of Zn-Ni-Cd coated steel was 0.073 mm y-1, which is estimated in a 0.5 M Na2SO4 + 0.5 M H3BO3 solution at a pH of 7. This value is much lower than the corrosion rate of Zn-Ni alloy (0.502 mm y-1) and Cd (0.306 mm y-1) coatings deposited from commercial baths. Zn-Ni-Cd alloys are also demonstrated to have superior hydrogen permeation inhibition properties compared to Cd and Zn-Ni coatings. Kinetic parameters of hydrogen permeation such as the transfer coefficient, α, the modified exchange current density, i′0, thickness dependent adsorption-absorption rate constant, k″, recombination rate constant, k3, surface hydrogen coverage, θs, were evaluated by applying a mathematical model to analyze experimental results.

AB - Zn-Ni-Cd alloy was electroplated from an alkaline sulfate bath under potentiostatic conditions. The corrosion and hydrogen permeation characteristics of Zn-Ni-Cd alloy coatings electrodeposited from alkaline bath were studied and compared with those of Cd and Zn-Ni coatings obtained using commercial baths. Zn-Ni-Cd alloy was electroplated from an alkaline sulfate bath under potentiostatic conditions. The corrosion potential of this Zn-Ni-Cd coating was -0.62 V vs. SCE, which is still negative potential compared to iron. The corrosion rate of Zn-Ni-Cd coated steel was 0.073 mm y-1, which is estimated in a 0.5 M Na2SO4 + 0.5 M H3BO3 solution at a pH of 7. This value is much lower than the corrosion rate of Zn-Ni alloy (0.502 mm y-1) and Cd (0.306 mm y-1) coatings deposited from commercial baths. Zn-Ni-Cd alloys are also demonstrated to have superior hydrogen permeation inhibition properties compared to Cd and Zn-Ni coatings. Kinetic parameters of hydrogen permeation such as the transfer coefficient, α, the modified exchange current density, i′0, thickness dependent adsorption-absorption rate constant, k″, recombination rate constant, k3, surface hydrogen coverage, θs, were evaluated by applying a mathematical model to analyze experimental results.

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Comparison of corrosion-resistance and hydrogen permeation properties of Zn-Ni, Zn-Ni-Cd and Cd coatings on low-carbon steel

Abstract

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