DECOMPOSITION IN BINARY Al-Li ALLOYS
- 1 November 1989
- journal article
- Published by EDP Sciences in Le Journal de Physique Colloques
- Vol. 50 (C8) , C8-419
- https://doi.org/10.1051/jphyscol:1989871
Abstract
We have investigated the influence of aging on the morphology and phase composition of annealed Al-Li binary alloys by means of an atom probe with a multi-detection system. The influence of artifacts such as the preferential evaporation of the Li-atoms and the pile-up effects for the Al-atoms were analysed as well. Specimens of Al- 2.0 wt%Li and Al -2.9 wt%Li were solution treated and aged at 190°C and 150°C for several times. δ'-precipitates were observed by FIM and their composition as well as the Li-content of the matrix were obtained by performing AP analysis for the different heat treatmentsKeywords
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