Zinc coatings significantly improve the structural and cosmetic corrosion resistance of steels under automotive paint systems. The increasing use of metallic-coated steels in automotive manufacture has inevitably resulted in areas where the coated steel is joined to cold-reduced steel. Electrochemical reactions at these areas result in poor phosphate deposition, under- paint saponification and eventual chathodic disbondment of the paint. Laboratory phosphating experiments and outdoor weathering trials have highlighed these effects. Pre-coating the zinc surface, usually be prephosphating, prior to joining to the cold-reduced steel, has been found to reduce the extent of these undesirable reactions.


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    Titel :

    Automobile corrosion and corrosion control at bimetallic couples


    Weitere Titelangaben:

    Kraftfahrzeugkorrosion und Beeinflussung der Korrosion durch bimetallische Werkstoffpaarungen


    Beteiligte:
    Isaac, J. (Autor:in) / John, V. (Autor:in)

    Erschienen in:

    SAE-Papers ; Mar ; 1-16


    Erscheinungsdatum :

    1990


    Format / Umfang :

    16 Seiten, 11 Bilder


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Automobile corrosion control at bimetallic couples

    Isaac,J. / John,V. / British Steel Technical,GB | Kraftfahrwesen | 1990


    Automobile Corrosion and Corrosion Control at Bimetallic Couples

    Isaac, J. / John, V. | SAE Technical Papers | 1990


    Galvanic corrosion prevention of steel-aluminum couples

    Courval,G.J. / Allin,J. / Doyle,D.P. et al. | Kraftfahrwesen | 1993


    Galvanic Corrosion Prevention of Steel-Aluminum Couples

    Doyle, D. P. / Courval, G. J. / Allin, J. | SAE Technical Papers | 1993


    Galvanic Corrosion In (Graphite/Epoxy)/Alloy Couples

    Danford, Merlin D. / Higgins, Ralph H. | NTRS | 1988