authors |
Kuznetsov, B; Serdechnova, M; Tedim, J; Starykevich, M; Kallip, S; Oliveira, MP; Hack, T; Nixon, S; Ferreira, MGS; Zheludkevich, ML |
nationality |
International |
journal |
RSC ADVANCES |
keywords |
ACTIVE CORROSION PROTECTION; DOUBLE HYDROXIDE FILM; T3 ALUMINUM-ALLOY; SOL-GEL COATINGS; ORGANIC COATINGS; BEHAVIOR; ACID; INHIBITION; NANOCONTAINERS; HYDROTALCITE |
abstract |
In this work, a functional sealing of a TSA anodic layer on AA2024 is suggested based upon the formation of inhibitor-containing Zn-Al layered double hydroxides (LDH). The LDH structures are formed in the pores of the anodic layer and on top of it as a result of hydrothermal treatment in a Zn2+-containing bath as shown by the structure, morphology and composition analysis. The resulting LDHs were loaded with a well-known corrosion inhibitor (vanadate). Electrochemical impedance spectroscopy, salt spray tests and scanning vibrating electrode techniques have shown a remarkable improvement in corrosion resistance of the LDH-modified sample in comparison with conventional hot-water sealing. The vanadate-loaded LDHs rendered a significant long-term active protection for the covered aluminum alloy substrate. |
publisher |
ROYAL SOC CHEMISTRY |
issn |
2046-2069 |
year published |
2016 |
volume |
6 |
issue |
17 |
beginning page |
13942 |
ending page |
13952 |
digital object identifier (doi) |
10.1039/c5ra27286f |
web of science category |
Chemistry, Multidisciplinary |
subject category |
Chemistry |
unique article identifier |
WOS:000369639400042
|