Research on Corrosion Characteristics of Mild Steel in Sea Water at Weihai

Abstract:

The corrosion characteristics of mild steel in real sea water are investigated by electrochemical test in this paper. Polarization curves and electrochemical impedance spectroscopy (EIS) are got by electrochemical workstation. From polarization curves, it is found that the corrosion rate rises at the initial period, and it becomes the highest on the 3rd day, then drops, and it tends to be stable after about 15 days, which is confirmed by EIS. In addition, the experiments also show that the corrosion layer can suppress the corrosion process. The electrochemical corrosiveness of the mild steel is analyzed in this study, and it lays a foundation for anticorrosion technology research.

• Periodical: Applied Mechanics and Materials (Volumes 229-231)
• Pages: 31-34
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.229-231.31
• Online since: November 2012
• Authors: Yan Gang Wang, Xing Hua Tong, Yong Jiang, Yong Liu, Lin Sen Zhu
• Keywords: Corrosion, Electrochemical Impedance Spectroscopy (EIS), Polarization Curve, Q235, Sea Water

References

[1] Information on http: /www. cnoee. com.

[2] Liu L H, Qi H B, Lu Y P, Li X G: Corros Sci Prot Technol, Vol. 15/2 (2003), pp.86-87.

[3] Baorong Hou , J ie Zhang , J izhou Duan : CEST , Vol. 38/2 (2003), pp.157-160.

[4] Baorong Hou, Jizhou Duan, Jinglei Zhang : MP, Vol. 41/10 (2002), pp.45-49.

[5] GU Z H, CHEN J, FAHIDY T Z: Electrochim Acta, Vol. 18/17 (1993), pp.2631-2634.