期刊
CORROSION SCIENCE
卷 54, 期 -, 页码 174-182出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2011.09.012
关键词
Low alloy steel; Acid solutions; Polarization; Acid corrosion; Hydrogen overpotential; Rust
资金
- Korea Ministry of Knowledge Economy
The influence of the addition of Cu on the corrosion resistance of low alloy steel in sulphuric acid was investigated using AC and DC electrochemical methods and a weight loss test, which took place in 10 wt% H(2)SO(4) solution at room temperature. The electrochemical measurements indicated that the corrosion rate is suppressed by the addition of Cu due to a higher hydrogen overpotential and prevention of the active dissolution. Surface analyses (XPS, EPMA and SEM) of the corroded surfaces conducted after the immersion test indicated that the rust layer formed on the Cu containing steels was enriched with Cu compounds. (C) 2011 Elsevier Ltd. All rights reserved.
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