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Comparative analysis of the anticorrosive properties of trivalent chromium conversion coatings formed on 2024-T3 and 2024-T351 aluminium alloys
Abstract : 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
https://hal.archives-ouvertes.fr/hal-03165264
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Submitted on : Wednesday, March 10, 2021 - 3:17:42 PM
Last modification on : Wednesday, June 1, 2022 - 3:59:10 AM
Long-term archiving on: : Friday, June 11, 2021 - 6:59:56 PM
Contributor : Open Archive Toulouse Archive Ouverte (OATAO) Connect in order to contact the contributor
Submitted on : Wednesday, March 10, 2021 - 3:17:42 PM
Last modification on : Wednesday, June 1, 2022 - 3:59:10 AM
Long-term archiving on: : Friday, June 11, 2021 - 6:59:56 PM
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