Influence of Surface Condition on the Electrochemical Behavior of Alloy Steel in Saturated Solution
Publication: Journal of Materials in Civil Engineering
Volume 30, Issue 9
Abstract
The electrochemical behavior of a novel alloy steel (00Cr10MoV) in the conditions of as-received with mill scale and pickled without mill scale in saturated solution was assessed using various electrochemical measurements. Backscattered electron (BSE) images and elemental mapping were employed to characterize the distribution of mill scale and rust layer on the surface of corroded steel in the presence of chlorides. Compared with pickled 00Cr10MoV steel, much lower passivation capability was observed for as-received 00Cr10MoV steel due to the depletion of alloying element Cr in the defective mill scale. However, in the presence of chlorides, the high corrosion resistance of passivated pickled 00Cr10MoV steel was less pronounced. Therefore, it was confirmed that the surface imperfections possibly formed during the pickling process had a negative impact on the chloride-induced corrosion behavior of pickled 00Cr10MoV steel.
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Acknowledgments
The authors gratefully acknowledge support provided by the National Natural Science Foundation of China (No. 51678144), the National Basic Research Program of China “973 Project” (No. 2015CB655100), the Natural Science Foundation of Jiangsu Province (No. BK20161420) and the Industry-University Research Cooperative Innovation Fund of Jiangsu Province (No. BY2013091).
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Published In
Journal of Materials in Civil Engineering
Volume 30 • Issue 9 • September 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Dec 5, 2017
Accepted: Mar 14, 2018
Published online: Jun 28, 2018
Published in print: Sep 1, 2018
Discussion open until: Nov 28, 2018
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