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.
|Title of host publication||Microstructural Processes in Irradiated Materials|
|Publication status||Published - 1999|
|MoE publication type||A4 Article in a conference publication|
|Event||1998 MRS Fall Meeting: Symposium on Microstructural Processes in Irradiated Materials - Boston, United States|
Duration: 30 Nov 1998 → 2 Dec 1998
|Conference||1998 MRS Fall Meeting|
|Period||30/11/98 → 2/12/98|