Fracture toughness and internal friction of GlidCop®Al-25 alloy

Seppo Tähtinen, M. Pyykkönen, S. Smuk, H. Hänninen, Y. Jagodzinski, O. Tarasenko

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    Abstract

    Fracture toughness was found to decrease rapidly with increasing temperature in dispersionstrengthened GlidCop®Al-25 copper alloy both in the as-supplied condition and neutron irradiated to a dose of 0.3 dpa. Internal friction study revealed two-component peak. Grain-boundary sliding was recognized to be responsible for the low-temperature component of the peak, which disappears after irradiation and restores after the heating above 900 K. This points out that the changes in the particle - grain boundary interaction, apparently, due to the defects at the interfaces produced by irradiation are responsible for the drop of fracture toughness in A125 alloy.
    Original languageEnglish
    Title of host publicationMicrostructural Processes in Irradiated Materials
    Pages573-578
    Publication statusPublished - 1999
    MoE publication typeA4 Article in a conference publication
    Event1998 MRS Fall Meeting: Symposium on Microstructural Processes in Irradiated Materials - Boston, United States
    Duration: 30 Nov 19982 Dec 1998

    Conference

    Conference1998 MRS Fall Meeting
    CountryUnited States
    CityBoston
    Period30/11/982/12/98

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    Tähtinen, S., Pyykkönen, M., Smuk, S., Hänninen, H., Jagodzinski, Y., & Tarasenko, O. (1999). Fracture toughness and internal friction of GlidCop®Al-25 alloy. In Microstructural Processes in Irradiated Materials (pp. 573-578)