This paper discusses the corrosion performance of aluminum alloys for automotive applications when employed in bimetal assemblies. The basic electromechanical principles of galvanic corrosion are reviewed, and a series of accelerated corrosion tests performed on dissimilar metal assemblies is described. The relevant factors most severely affecting the degree of corrosion are: type of dissimilar metal, anode-to-cathode area relationship, and type of environment. Approaches to combating galvanic corrosion of aluminum include use of compatible parts, paint coatings, sealants, tapes, and gaskets.


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    Title :

    Performance of Aluminum in Bimetallic Assemblies


    Additional title:

    Sae Technical Papers


    Contributors:
    Englehart, E. T. (author) / Sowinski, G. (author) / King, W. (author)

    Conference:

    1975 Automotive Engineering Congress and Exposition ; 1975



    Publication date :

    1975-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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