STP397

    An Investigation of Stress-Corrosion Failures in Titanium Compressor Components

    Published: Jan 1966


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    Abstract

    The cracking of J93 jet engine components manufactured from Ti-7Al-4Mo and Ti-5Al-2.5Sn was shown to result from silver chloride stress corrosion. Laboratory testing was conducted to demonstrate the effect of intimate contact between titanium alloys and silver and silver chloride. An investigation of the mechanism of attack suggested that the deleterious effects noted were the result of silver's unique ability to react with, and thereby concentrate minute amounts of chlorine such as might prevail in a test environment. Because of this behavior, silver plate was removed from all areas in the J93 engine where it came in intimate contact with titanium components.

    Keywords:

    titanium alloys, silver chloride, silver, stress-corrosion resistance, stress corrosion, corrosion resistance


    Author Information:

    Duttweiler, R. E.
    General Electric Co., Cincinnati, Ohio

    Wagner, R. R.
    General Electric Co., Cincinnati, Ohio

    Antony, K. C.
    General Electric Co., Cincinnati, Ohio


    Paper ID: STP46432S

    Committee/Subcommittee: E08.06

    DOI: 10.1520/STP46432S


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