期刊
CORROSION SCIENCE
卷 104, 期 -, 页码 290-309出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2015.12.023
关键词
Aluminium; AFM; IR spectroscopy; Raman spectroscopy; Inclusions; Oxide coating
资金
- Slovenian Research Agency [L2-5484, P1-0030]
The corrosion processes of AA 2024 were analysed via the combined approach of advanced in situ and ex situ analytical tools. Firstly, IR reflection-absorption spectroscopy enabled the identification of a pseudo-boehmite layer on initial surface, which remained present also after the ex situ spectroelectrochemical treatment at different potentials. Secondly, formation of oxyhydroxides was confirmed by confocal Raman spectroscopy. To get a deeper insight into the morphology changes, a three-electrode in situ electrochemical AFM cell was constructed. The results of in situ measurements revealed a gradual increase in the surface roughness. Trenching around intermetallic particles and corrosion deposits were also observed. (C) 2015 Elsevier Ltd. All rights reserved.
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