Skip to Main content Skip to Navigation
Journal articles

Characterization of intergranular corrosion defects in a 2024 T351 aluminium alloy

Abstract : Intergranular corrosion defects formed after a 24h immersion in a 1M NaCl solution in a 2024-T351 Al alloy were characterized using a combination of electron microscopy techniques. Results showed the dissolution of intergranular Cu-rich precipitates all along the corroded grain boundaries. Cu species were incorporated inside the amorphous alumina oxide film identified in the corroded grain boundaries leading to the formation of structural defects in the oxide film. A 10–200nm-thin metallic Cu-rich layer was also observed at the oxide/metal interface and at the tip of the intergranular corrosion defect.
Document type :
Journal articles
Complete list of metadatas

Cited literature [45 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-02497140
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Tuesday, March 3, 2020 - 2:39:29 PM
Last modification on : Thursday, March 5, 2020 - 1:35:11 AM
Long-term archiving on: : Thursday, June 4, 2020 - 4:13:26 PM

File

Bonfils-Lahovary_25560.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

Marie-Laëtitia De Bonfils-Lahovary, Lydia Laffont, Christine Blanc. Characterization of intergranular corrosion defects in a 2024 T351 aluminium alloy. Corrosion Science, Elsevier, 2017, 119, pp.60-67. ⟨10.1016/j.corsci.2017.02.020⟩. ⟨hal-02497140⟩

Share

Metrics

Record views

50

Files downloads

147