Effect of Rare Earth Elements on Corrosion Behavior of Q345B Steel in CSP

Abstract:

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The effects of rare earth elements (RE) on corrosion behavior of Q345B steel at marine atmospheric environment in Compact strip production (CSP) technology was studied using alternate immersion test in this paper. The influences of RE on the microstructure, the components of corrosion products, the corrosion dynamic laws as well as the electrochemical properties were also investigated by optical microscope, SEM, XRD, polarization curve and EIS measurements. The results show that the microstructure of Q345B steel in CSP is finer and the corrosion is mitigated due to relatively compact corrosion products with the addition of RE. The corrosion current density of Q345B steel with RE is lower than that of Q345B steel without RE and the corrosion resistance of Q345B in CSP is improved to a certain extent by RE.

Info:

Periodical:

Advanced Materials Research (Volumes 239-242)

Edited by:

Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He

Pages:

3062-3068

DOI:

10.4028/www.scientific.net/AMR.239-242.3062

Citation:

T. Li et al., "Effect of Rare Earth Elements on Corrosion Behavior of Q345B Steel in CSP", Advanced Materials Research, Vols. 239-242, pp. 3062-3068, 2011

Online since:

May 2011

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Price:

$35.00

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