Modeling of GP(I) zone formation during quench in an industrial AA7449 75mm thick plate - Mines Paris Accéder directement au contenu
Article Dans Une Revue Materials & Design Année : 2016

Modeling of GP(I) zone formation during quench in an industrial AA7449 75mm thick plate

Résumé

The GP(I) zone formation during quench is simulated in an industrial Aluminum alloy AA7449 75 mm thick plate by using a multi-class precipitation model. For this purpose, results of in situ SAXS experiments are reported. A methodology is presented that takes advantage of the collected data to derive i - a thermodynamic description for GP(I) zones from reversion heat treatments by using a solubility product and ii - the influence of excess vacancies on diffusion coefficients. This approach allows reproducing reasonably well the GP(I) zone formation measured during rapid cooling. Further, the simulated as-quenched surface yield strength compares well with experimental results reported in the literature.

Domaines

Matériaux

Dates et versions

hal-01410400 , version 1 (06-12-2016)

Identifiants

Citer

Patrick Schloth, Alexis Deschamps, Charles-André Gandin, Jean Marie Drezet. Modeling of GP(I) zone formation during quench in an industrial AA7449 75mm thick plate. Materials & Design, 2016, 112, pp.46 - 57. ⟨10.1016/j.matdes.2016.09.052⟩. ⟨hal-01410400⟩
180 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More