Journal
CORROSION SCIENCE
Volume 53, Issue 4, Pages 1547-1553Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2011.01.029
Keywords
Aluminium; SEM; Anodic films
Funding
- Korea Research Council for Industrial Science and Technology of Korea [B551179-08-01-00]
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Growth behaviour of anodic oxide films on AC2A Al cast alloy was investigated in sulphuric acid solution using SEM, optical microscope (OM) and confocal scanning laser microscope (CSLM) and energy dispersive spectroscopy (EDS). The AC2A alloy contains three different types of second-phase particles: Al-Cu, Al-Cu-Fe-Si and Al-Si particles. The growth of anodic oxide films was critically retarded by the presence of non-reactive particles of Al-Si, while little effect was observed by the presence of active particles of Al-Cu and Al-Cu-Fe-Si. The most severe retardation effect on the growth of anodic films on AC2A alloy resulted from agglomerated Al-Si particles. (c) 2011 Elsevier Ltd. All rights reserved.
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