期刊
CORROSION SCIENCE
卷 58, 期 -, 页码 175-180出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2012.01.017
关键词
Low alloy steel; XRD; Polarisation; EIS; Atmospheric corrosion; Rust
资金
- National Science Fund of China [51131007, 50499336, 50971120]
The evolution of rust on MnCuP weathering steel submitted to a simulated coastal atmosphere was investigated by corrosion weight gain, scanning electron microscopy. X-ray diffraction, and electrochemical methods. The results indicate that the higher corrosion rate during the first stage than that during the second stage is related closely to the rust composition and electrochemical properties. The corrosion rate evolution is caused by the formation of a protective rust layer with a higher relative amount of alpha-FeOOH. The rust initially enhances and then stabilizes the cathodic process, but the anodic process tends to be inhibited by the protective rust layer. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
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