Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
<mark>Journal publication date</mark> | 05/2008 |
---|---|
<mark>Journal</mark> | Scripta Materialia |
Issue number | 9 |
Volume | 58 |
Number of pages | 4 |
Pages (from-to) | 719-722 |
Publication Status | Published |
<mark>Original language</mark> | English |
The generation and evolution of open volume defects in underaged and T3 Al-Cu-Mg alloy is studied with positron annihilation spectroscopy. During room temperature ageing the positron lifetime in plastically deformed, underaged material approaches the saturation lifetime of the undeformed material. Doppler-broadening results indicate that this behaviour can be attributed to diffusion and clustering of retained solute Cu atoms at the deformation defects, a process of relevance for the introduction of a self-healing mechanism in age-hardenable aluminium alloys.