authors |
Shi, HW; Han, EH; Liu, FC; Kallip, S |
nationality |
International |
journal |
APPLIED SURFACE SCIENCE |
author keywords |
Aluminium alloy; Phytic acid; Conversion coating; Corrosion |
keywords |
SELF-ASSEMBLED MONOLAYER; COPPER CORROSION; MAGNESIUM ALLOYS; AQUEOUS-SOLUTION; NACL SOLUTION; CERIUM OXIDE; ADSORPTION; DEPOSITION; AA2024-T3; MICROSTRUCTURE |
abstract |
The corrosion protection properties of environmentally friendly phytic acid conversion coatings were studied on 2024-T3 aluminium alloy. The films were prepared under acidic conditions with various pH values and characterised by SEM, EDS, ATR-FTIR and electrochemical techniques. The results indicate that the conversion coatings obtained by immersing the alloy in phytic acid solutions at pH from 3 to 5.5 provide excellent corrosion resistance. ATR-FTIR confirms that the film is formed by deposition of reaction products between Al3+ and phosphate groups in phytic acid molecules. The conformation models of the deposition film are proposed. (C) 2013 Elsevier B.V. All rights reserved. |
publisher |
ELSEVIER SCIENCE BV |
issn |
0169-4332 |
year published |
2013 |
volume |
280 |
beginning page |
325 |
ending page |
331 |
digital object identifier (doi) |
10.1016/j.apsusc.2013.04.156 |
web of science category |
Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter |
subject category |
Chemistry; Materials Science; Physics |
unique article identifier |
WOS:000321045700049
|