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Article Dans Une Revue Scripta Materialia Année : 2018

High throughput evaluation of the effect of Mg concentration on natural ageing of Al-Cu-Li-(Mg) alloys

Résumé

The effect of Mg content on the natural ageing of Al-Cu-Li-(Mg) alloys has been investigated on a compositionally graded material made by linear friction welding, allowing to probe Mg contents between 0 and 0.4 at.%. High throughput time-and space-resolved characterization of natural ageing kinetics has been achieved using small-angle X-ray scattering, supplemented by differential scanning calorimetry. Natural ageing results mainly in the formation of Cu-rich clusters whose characteristics strongly depend on the presence of Mg. Larger precipitates of 2 nm size also form to a lesser extent above a Mg concentration of 0.1 at.%.
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Dates et versions

hal-01741542 , version 1 (24-05-2018)

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R. Ivanov, A. Deschamps, Frédéric de Geuser. High throughput evaluation of the effect of Mg concentration on natural ageing of Al-Cu-Li-(Mg) alloys. Scripta Materialia, 2018, 150, pp.156-159. ⟨10.1016/j.scriptamat.2018.03.024⟩. ⟨hal-01741542⟩
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