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 articleResearchpeer-review

10 Citations (Scopus)

Abstract

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
Volume4
Issue number10
DOIs
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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