Gamma titanium aluminide (gamma-TiAl or gamma) alloys are being developed for application in aircraft gas turbine engines. Potential applications include: components in the compressor, turbine, and exhaust sections of the engine. Advanced titanium aluminide intermetallics are being developed for applications where service temperatures are in the range 650 deg C to 900 deg C. The usefulness of these alloys may be limited by oxidation and by oxygen-induced embrittlement. Successful application of these materials requires that the kinetics of oxidation for the base alloys are parabolic and that coatings are available for environmental protection of alpha-2 alloys above 700 deg C and gamma alloys above 815 deg C. Results of an ongoing program to meet these requirements for gamma alloys are presented.


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    Title :

    Protective coatings for titanium aluminide intermetallics


    Additional title:

    Schutzbeschichtungen für intermetallische Titan-Aluminium-Verbindungen


    Contributors:


    Publication date :

    1993


    Size :

    8 Seiten, 9 Bilder, 7 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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