期刊
CORROSION SCIENCE
卷 98, 期 -, 页码 88-97出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2015.05.017
关键词
Carbon steel; Rare earth elements; EIS; Polarization; Neutral inhibition
资金
- Croatian Science Foundation [9.01/253 Ecological protection of metal constructions exposed to marine environment]
In this research the effect of cerium (III) chloride heptahydrate (CC) and sodium gluconate (SG) on the corrosion inhibition of carbon steel C45 (1531) in natural seawater has been evaluated using electrochemical methods and scanning electron microscopy (SEM). The results show that substantial corrosion inhibition (94.98%) using CC and SG can be obtained in synergistic manner. Surface analysis confirmed the presence of cerium ions incorporated in the protective layer of carbon steel specimen. SG acts predominantly as anodic inhibitor whereas CC acts as a mixed type inhibitor. Using both inhibitors predominant mechanism of anodic inhibition is observed. (C) 2015 Elsevier Ltd. All rights reserved.
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