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    Exfoliation Corrosion Testing of 7178 and 7075 Aluminum Alloys

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    As special heat treatments to improve resistance of aluminum alloys to exfoliation were developed, the need for accelerated testing methods to control production heat treatment arose. A joint task group formed by ASTM Committee GO1.05 and the Aluminum Association has conducted an interlaboratory testing program of various salt spray and immersion tests for 7000 series alloys. A constant immersion test produced the best results.


    corrosion, exfoliation corrosion, corrosion tests, salt spray tests, pitting, immersion tests (corrosion), aluminum alloys, etching

    Author Information:

    Ketcham, SJ
    Naval Air Development Center, Warminster, Pa.

    Jeffrey, PW
    Alcan Research and Development Ltd, Kingston, Ontario

    Committee/Subcommittee: G01.05

    DOI: 10.1520/STP35426S