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Title

A Laboratory Study of the Cathodic Protection Afforded by 55-percent Al-Zn Coating in Comparison with a Galvanized Coating

AuthorsPalma, E.; Morcillo, Manuel
Issue Date1998
PublisherAmerican Electroplaters and Surface Finishers Society
CitationPlating and Surface Finishing 85: 105-09 (1998)
AbstractThis paper reports studies of the galvanic protection afforded to the base steel by a 55-percent Al-Zn coating * in comparison with a galvanized coating. Both types of coatings are obtained by a continuous hot dip process in a bath containing the coating in a molten state. Results are presented for laboratory tests using solutions (distilled water and 5-percent sodium chloride) to evaluate the influence of different variables (electrolyte, cathode-to-anode surface ratio and anode-cathode separation distance) involved in the galvanic corrosion process. The conductivity of the electrolyte and the cathode (steel) anode (coating) surface ratio influence the degree of cathodic protection (CP) afforded by the coating. The conclusions reached in this study agree with field data previously obtained by the authors in relatively unpolluted (rural and urban) and marine atmospheres.
URIhttp://hdl.handle.net/10261/75913
ISSN0360-3164
Appears in Collections:(CENIM) Artículos
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