Material characterization and corrosion performance of nickel electroplated in supercritical CO2 fluid

The surface roughness, microhardness, crystal structure and corrosion performance of nickels electroplated at atmospheric pressure and in supercritical CO2 fluid, respectively, are compared. The experimental results showed that nickel electroplated in the latter case exhibited a lower surface roughn...

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Bibliographic Details
Published in:Corrosion science 2008-09, Vol.50 (9), p.2614-2619
Main Authors: CHUNG, Sung-Ting, HUANG, Hsien-Chung, PAN, Szu-Jung, TSAI, Wen-Ta, LEE, Pee-Yew, YANG, Chung-Hsin, WU, Mau-Bin
Format: Article
Language:English
Subjects:
Applied sciences
Corrosion
Corrosion environments
Exact sciences and technology
Metallic coatings
Metals. Metallurgy
Production techniques
Surface treatment
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Summary:The surface roughness, microhardness, crystal structure and corrosion performance of nickels electroplated at atmospheric pressure and in supercritical CO2 fluid, respectively, are compared. The experimental results showed that nickel electroplated in the latter case exhibited a lower surface roughness and a higher hardness. In HCl solution, the nickel deposited in supercritical CO2 fluid had a lower anodic current density and a higher polarization resistance. The advantage of emulsified supercritical CO2 fluid for electroplating was demonstrated.
ISSN:0010-938X
1879-0496
DOI:10.1016/j.corsci.2008.06.038