Influence of RE Elements on Corrosion Rust Layer of Low Carbon Steel in CSP in Simulated Coastal Atmosphere

Abstract:

The influence of RE on corrosion rust layer of low carbon steel in CSP in a simulated coastal-industrial atmosphere was investigated by weight loss, SEM, XRD, and electrochemical measurements. The results demonstrate that the corrosion rate of low carbon steel in CSP with RE is higher at the initial stage and then lower in the late stage than that of samples without RE, which is caused by the formation of a compact and continuous rust layer with the addition of RE. The relative content of α-FeOOH and Fe3O4 in rust increased in the low carbon steel with RE indicates an improved protective ability of the rust. Using the analysis of resistance, the EIS results also indicate that the enhancement of protective ability of the rust layer by the RE is the main reason for increasing corrosion resistance of low carbon in CSP in simulated coastal atmosphere.

• Periodical: Applied Mechanics and Materials (Volumes 275-277)
• Pages: 1848-1854
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.275-277.1848
• Online since: January 2013
• Authors: Tao Li, Meng Qin, Hui Zheng, Zi Li Jin, Hui Ping Ren, Wei Xiao Li
• Keywords: Coastal Atmosphere, Corrosion Rust Layer, CSP, Low Carbon Steel, Re

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