STP339: Identification of Phases in Age-Hardenable Nickel-Copper-Aluminum-Titanium Alloy

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

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

    Pages: 4    Published: Jan 1963


    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).

    Paper ID: STP41273S

    Committee/Subcommittee: E04.05

    DOI: 10.1520/STP41273S

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