Recent advances in the metallurgy of aluminum alloys. Part II: Age hardening

Publication date: Available online 9 November 2018Source: Comptes Rendus PhysiqueAuthor(s): Christophe Sigli, Frédéric De Geuser, Alexis Deschamps, Joël Lépinoux, Michel PerezAbstractIn this paper are reviewed some recent progress on the understanding and simulation of aluminum alloy age hardening. The main phenomena governing the formation of precipitate microstructures in aluminum alloys are presented; they provide a qualitative understanding of the relationship between alloy chemistry, processing and final precipitate microstructure at the nanoscale. In a second part, we describe how modeling approaches are capable of predicting these microstructures, from simple models to more advanced ones. A particular emphasis is put on the limits of these models and the strategies that are being developed to overcome them. In a third part, the mechanisms for precipitation strengthening will be discussed, as well as the models available to quantify this strengthening. Finally, in the last part, we will give some general prospects for the main developing areas of research.RésuméDans cet article, nous examinons quelques progrès récents en matière de compréhension et de simulation du durcissement par revenu des alliages d'aluminium. Les principaux phénomènes régissant la formation des précipités dans des alliages d'aluminium sont présentés. Ils fournissent une compréhension qualitative de la relation entre la composition des alliages, le traitement thermique et la taille...

Source: Comptes Rendus Physique - November 11, 2018 Category: Physics Source Type: research