期刊
CORROSION SCIENCE
卷 53, 期 2, 页码 760-768出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2010.11.002
关键词
Steel; EIS; Polarization; Weight loss; Acid inhibition
资金
- Key Construction Course of Chemical Engineering for Forest Products of Southwest Forestry University [XKX200907]
- Natural Science Foundations of Southwest Forestry University [200715M]
- Educational Department of Yunnan Province [09C0181]
The inhibition effect of acid violet 6B (AV6B) on the corrosion of cold rolled steel (CRS) in 1.0-5.0 M HCl solution was studied for the first time by weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) methods. The results show that AV6B is a very good inhibitor in 1.0 M HCl and the adsorption of AV6B on CRS surface obeys Langmuir adsorption isotherm. Polarization curves reveal that AV6B behaves as a mixed-type inhibitor. EIS spectra exhibit one capacitive loop and confirm the inhibitive ability. Effects of immersion time and acid concentration on inhibition performance were also discussed. (C) 2010 Elsevier Ltd. All rights reserved.
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