An Electron Metallographic Study of the Precipitation-Hardening Process in Commercial Nickel-Base Alloys

    Published: Jan 1958

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    Electron metallographic studies have been made of the commercial alloys Inconel-X, Waspaloy, M-252, and Udimet-500 aged at 1400 and 1600 F for periods up to 100 or 1000 hr. Electron micrographs showing the development of the γ phase as a function of aging are presented, and possible relationships between the precipitation process and the variations of the hardness of the alloys during aging are discussed.

    Author Information:

    Bigelow, WC
    Assistant Professor of Science, University of Michigan, Ann Arbor, Mich.

    Amy, JA
    Research Assistant, University of Michigan Research Institute, Ann Arbor, Mich.

    Corey, CL
    Associate Professor of Metallurgical Engineering, Wayne State UniversityDetroit, Mich.

    Freeman, JW
    Professor of Metallurgical Engineering, University of Michigan, Ann Arbor, Mich.

    Committee/Subcommittee: E04.11

    DOI: 10.1520/STP39534S

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