Role of vacancies during creep and secondary precipitation in an underaged Al-Cu-Mg-Ag alloy

A. Somoza, C. E. Macchi, R. N. Lumley, I. J. Polmear, A. Dupasquier, R. Ferragut

Research output: Contribution to journalConference articleOther

10 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)3473-3476
Number of pages4
JournalPhysica Status Solidi C: Current Topics in Solid State Physics
Issue number10
Publication statusPublished - 1 Dec 2007
Event14th International Conference on Positron Annihilation, ICPA 14 - Hamilton, ON, Canada
Duration: 23 Jul 200628 Jul 2006

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