STP339

    Identification of Phases in Age-Hardenable Nickel-Copper-Aluminum-Titanium Alloy

    Published: Jan 1963


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    Abstract

    Previous investigations of the microstructure and age-hardening characteristics of commercial nickel-base superalloys were concentrated on the nickel-chromium alloys hardened with aluminum and titanium. The age-hardening phases in these alloys are of the gamma prime type based on the ordered Ni3Al structure, or the eta type based on the ordered hexagonal structure Ni3Ti (I), although it has been shown that Ni3Ti can have a face-centered cubic structure under nonequilibrium conditions (2).


    Author Information:

    Fragetta, W. A.
    Curtiss-Wright Corp., Wood-Ridge, N. J.

    Mihalisin, T. R.
    Research Laboratory, The International Nickel Co., Inc., Bayonne, N. J.


    Paper ID: STP41273S

    Committee/Subcommittee: E04.05

    DOI: 10.1520/STP41273S


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