Comparative analysis of the anticorrosive properties of trivalent chromium conversion coatings formed on 2024-T3 and 2024-T351 aluminium alloys - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Corrosion Science Année : 2020

Comparative analysis of the anticorrosive properties of trivalent chromium conversion coatings formed on 2024-T3 and 2024-T351 aluminium alloys

Résumé

The anticorrosive properties of the trivalent chromium process (TCP) coatings were studied for a 2024 aluminium alloy (AA2024) in both T3 and T351 metallurgical states. Better corrosion resistance was measured for the TCP coated AA2024-T3 compared to AA2024-T351, which was clearly related to the surface copper coverage measured after the pre-treatments for the different samples. The differences were explained considering the reactivity of both the S-phase coarse intermetallics (IMCs) and intergranular Cu-rich precipitates during deoxidation.Large S-phase IMCs and numerous intergranular Cu-rich precipitates constituted critical metallurgical parameters for the anticorrosive properties of the TCP coatings

Domaines

Matériaux
Fichier principal
Vignette du fichier
VERDALET-GUARDIOLA_26642.pdf (3.48 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03165264 , version 1 (10-03-2021)

Identifiants

Citer

Xavier Verdalet-Guardiola, Romain Saillard, Benoit Fori, Sandrine Duluard, Christine Blanc. Comparative analysis of the anticorrosive properties of trivalent chromium conversion coatings formed on 2024-T3 and 2024-T351 aluminium alloys. Corrosion Science, 2020, 167, pp.108508. ⟨10.1016/J.CORSCI.2020.108508⟩. ⟨hal-03165264⟩
26 Consultations
47 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More