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

(1, 2) , (3) , (4) , (2)
1
2
3
4

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.

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⟩
174 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More