Ageing processes in Al-Cu-Mg alloys with different Cu/Mg ratios

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

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Abstract

Three age-hardenable Al-Cu-Mg alloys with different Cu/Mg ratios were studied by means of positron annihilation lifetime spectroscopy and Vickers hardness as a function of the artificial ageing time at 175 oC. Complementary information on the decomposition sequence was obtained by means of differential scanning calorimetry. The results are discussed in terms of the different structures that are formed during the precipitation sequence of the supersaturated solid solution.

Original languageEnglish
Pages (from-to)2322-2325
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume6
Issue number11
DOIs
Publication statusPublished - 2009

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