6533b7cffe1ef96bd12584c1
RESEARCH PRODUCT
Droplet cell investigation of intergranular corrosion on AA2024
R. BonzomRoland Oltrasubject
Materials science020209 energyMetallurgy02 engineering and technologyPenetration (firestop)Intergranular corrosionMicrostructurelcsh:Chemistrylcsh:Industrial electrochemistrylcsh:QD1-999visual_art0202 electrical engineering electronic engineering information engineeringElectrochemistryAluminium alloyvisual_art.visual_art_mediumHydrogen evolutionGrain boundaryComposite materialFOIL methodlcsh:TP250-261description
An original method combining a droplet cell with direct optical interrogation of the reverse side of a 50μm thick foil AA2024 has been tested to evaluate the possible analysis of the current during intergranular corrosion tests. The foil microstructure and the selected orientation were suitable for recording the current generated during the propagation in volume of a well-defined grain boundary trace. Even if it is impossible to reach a charge and mass balance from these preliminary attempts, it was demonstrated that it is possible, despite hydrogen evolution, to record a current transient resulting from the full penetration of an intergranular path. Keywords: Intergranular corrosion, Aluminium alloy, Droplet cell, Anodic current, Foil penetration technique
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-08-01 | Electrochemistry Communications |