期刊
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
卷 16, 期 6, 页码 2085-2093出版社
SPRINGER
DOI: 10.1007/s10008-011-1623-1
关键词
Coatings; Al nanoparticles; Corrosion; EIS; FIB-TEM
The effect of addition of aluminum (Al) nanoparticles to epoxy coating on the ability to protect the carbon steel was studied by electrochemical impedance spectroscopy and focused ion beam-transmission electron microscopy. The EIS was conducted in 0.1 M NaCl solution after wet/dry cyclic corrosion test. The addition of Al nanoparticles increased the film resistance (R (f)) and the charge transfer resistance (R (ct)) of epoxy-coated steel. The surface analysis showed that uniform and fine Al-Fe complex oxide layers were formed acting as barrier layers that enhanced the corrosion protection of the epoxy-coated steel. It has been concluded that the Al nanoparticles had a beneficial role in improving the corrosion resistance of the epoxy-coated steel.
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