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3D atom probe study of solute atoms clustering during natural ageing and pre-ageing of an Al-Mg-Si alloy

Abstract : The pair-correlation function applied to 3D Atom Probe reconstructed volumes has been used to study the influence of a pre-ageing treatment (363 K) on the early stages of precipitation at 458K in an Al-Mg-Si 6016 alloy. Mg-Si short-range positive pair correlation (clustering) is shown to form after a pre-ageing treatment. The hetero-atomic clusters are thought to act as preferential nucleation sites and lead to a finer dispersion of precipitates after ageing.
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https://hal.archives-ouvertes.fr/hal-00408093
Contributor : Frédéric de Geuser Connect in order to contact the contributor
Submitted on : Wednesday, July 29, 2009 - 9:32:49 AM
Last modification on : Tuesday, October 19, 2021 - 4:14:14 PM
Long-term archiving on: : Tuesday, June 15, 2010 - 8:00:46 PM

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F. de Geuser, W. Lefebvre, D. Blavette. 3D atom probe study of solute atoms clustering during natural ageing and pre-ageing of an Al-Mg-Si alloy. Philosophical Magazine Letters, Taylor & Francis, 2006, 86 (4), pp.227--234. ⟨10.1080/09500830600643270⟩. ⟨hal-00408093⟩

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