The polymer-metal interface in painted precoated galvanized steel has been investigated using X-Ray Photoelectron Spectroscopy (XPS) and static secondary Ion Mass Spectrometry (SIMS). Small spot XPS was used to identify the type of corrosion product formed in cyclic corrosion testing as 6Zn (OH)2 .ZnCl2, as opposed to 4Zn (OH)2 .ZnCl2 which is formed in atmospheric corrosion conditions. Analysis of the paint-metal interface by means of static SIMS demonstrated adsorption of an organic constituent of the paint system on the metal which was identified as uncured epoxy. This effect seemed to be dependent on the curing conditions and was observed to correlate with the performance of the material in a scab corrosion test. The results demonstrate that XPS and static SIMS are very powerful tools for the study of the chemistry at paint-metal interfaces.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Application of Small Spot XPS and Static SIMS in the Study of Corrosion Mechanisms in Painted Precoated Automotive Steels


    Additional title:

    Sae Technical Papers


    Contributors:
    Sabata, A. (author) / Wirmark, G. (author) / van Ooij, W. J. (author)

    Conference:

    1989 SAE Automotive Corrosion and Prevention Conference and Exposition ; 1989



    Publication date :

    1989-12-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Effect of Paint Adhesion on the Underfilm Corrosion of Painted Precoated Steels

    Van Ooij, W. J. / Sabata, A. / NACE; Task Group T-14A on Automotive Corrosion | British Library Conference Proceedings | 1992


    Progress of automotive precoated sheet steels

    Ishihara, S. | Tema Archive | 1983


    Precoated steels for exposed automotive applications

    Sievert, W.C. | Tema Archive | 1979


    Precoated steels development for the automotive industry

    Matthews, A E / Davies, G M | SAGE Publications | 1997