Aluminium alloys that are deliberately underaged show both enhanced creep resistance at elevated temperatures and high responses to secondary ageing at lower temperatures (e.g. 20-65 °C). These phenomena appear to be strongly influenced by the presence of vacant lattice sites and positron annihilation spectroscopy has been used to study the roles of solute/vacancy interaction during precipitation in an aged Al-Cu-Mg-Ag alloy.
|Number of pages||4|
|Journal||Physica Status Solidi C: Current Topics in Solid State Physics|
|Publication status||Published - 1 Dec 2007|
|Event||14th International Conference on Positron Annihilation, ICPA 14 - Hamilton, ON, Canada|
Duration: 23 Jul 2006 → 28 Jul 2006