A review is made of some of the existing methodologies for assessing phosphate characteristics on automotive sheet steels. Data obtained from on-line processing of zinc and zinc-iron substrates are presented comparing phosphate attributes to performance in the Chipping Corrosion Test. Phosphate characteristics measured were: crystal size; nickel content; coating weight; porosity; alkali solubility. A definitive relationship between these characteristics and chipping corrosion performance was not found.


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    Title :

    Methods of Characterizing Phosphate Coatings on Automotive Sheet Steels


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1986 SAE Automotive Corrosion and Prevention Conference and Exposition ; 1986



    Publication date :

    1986-12-08




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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