STP1447: Microstructure Response in Copper and Copper Alloys Irradiated with Fission Neutrons with Controlled Temperature Variations

    Muroga, T
    Professor, National Institute for Fusion Science, Gifu,

    Watanabe, H
    Associate Professor, Research Institute for Applied Mechanics, Kyushu University, Fukuoka,

    Pages: 10    Published: Jan 2004


    The effects of temperature variation on microstructural evolution were investigated for Cu, Cu-5Ni, Cu-3.5Zn, and Cu-5Ni-2Zn irradiated in JMTR and HFIR. The low temperature pre-irradiation at 477 K to 533 K was shown not to influence microstructural evolution significantly during the following irradiation at 613 K to 693 K. On the other hand, downward temperature shift during irradiation was shown to produce void formation in Cu and Cu-3.5Zn. The mechanism of the temperature variation effects was discussed based on the defect properties and the details of the temperature transient history during irradiation.


    microstructure, neutron irradiation, temperature variation effects, copper, copper alloys

    Paper ID: STP11272S

    Committee/Subcommittee: E10.08

    DOI: 10.1520/STP11272S

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