The chemical throwing power of lithium-based inhibitors from organic coatings on AA2024-T3

Visser, P.; Marcoen, K.; Trindade, G. F.; Abel, M-L.; Watts, J. F.; Hauffman, T.; Mol, J. M. C.; Terryn, H.

Abstract

Chemical throwing power, being the distance over which an inhibitor is able to protect a defect effectively, is an important parameter for active protective coatings. This study investigates the chemical throwing power of lithium-based leachable corrosion inhibitors exhibiting different leaching kinetics, from coatings at different inhibitor loading concentrations. The results demonstrate that Li-salt loaded coatings provide corrosion protection of defect areas up to a width of 6 mm. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) was used to detect the lateral spread of Li in the defect areas and provide the chemical speciation of corrosion protective layers in the defect areas.

Citation

Visser, P., Marcoen, K., Trindade, G. F., Abel, M., Watts, J. F., Hauffman, T., …Terryn, H. (2019). The chemical throwing power of lithium-based inhibitors from organic coatings on AA2024-T3. Corrosion Science, 150, 194-206. https://doi.org/10.1016/j.corsci.2019.02.009

• Journal Article Type: Article
• Acceptance Date: Feb 3, 2019
• Online Publication Date: Feb 11, 2019
• Publication Date: Apr 15, 2019
• Deposit Date: Mar 14, 2019
• Publicly Available Date: Feb 12, 2020
• Journal: Corrosion Science
• Print ISSN: 0010-938X
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 150
• Pages: 194-206
• DOI: https://doi.org/10.1016/j.corsci.2019.02.009
• Keywords: aluminium, lithium, inhibitor, throwing power, active protection,; 24; ,ToF-SIMS; 25
• Public URL: https://nottingham-repository.worktribe.com/output/1648058
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0010938X18320729
• Additional Information: This article is maintained by: Elsevier; Article Title: The chemical throwing power of lithium-based inhibitors from organic coatings on AA2024-T3; Journal Title: Corrosion Science; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.corsci.2019.02.009; Content Type: article; Copyright: © 2019 Elsevier Ltd. All rights reserved.