STP380

    Irradiation Effects on High-Temperature Reactor Structural Metals

    Published: Jan 1965


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    Abstract

    Operating conditions for nuclear power reactors indicate that new materials must be used due to the temperature and corrosion limitations of presently used materials. Investigation of the effects of irradiation and environment on the mechanical properties of several iron- and nickel-base alloys has been initiated at Hanford Laboratories.

    Flat tension specimens of several nickel-base alloys have been irradiated to exposures to 1 X 1021 nvt in 80 C water, 280 C water, and 500 to 700 C gaseous environments. Several metallurgical conditions have also been examined. Additional specimens of refractory metal alloys have been irradiated and tested at ambient temperatures. The corrosion and oxidation resistance of the nickel-base alloys has been determined in an environment of helium containing 15-torr water vapor at 925 C. Intergranular attack was found in alloys which showed high weight gains.


    Author Information:

    Claudson, T. T.
    Reactor metals research, Hanford Laboratories, General Electric Co., Richland, Wash.

    Pessl, H. J.
    Reactor metals research, Hanford Laboratories, General Electric Co., Richland, Wash.


    Paper ID: STP43527S

    Committee/Subcommittee: E10.07

    DOI: 10.1520/STP43527S


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