Electrochemical corrosion behavior of hot dip coating in artificial seawater

Sun Hu-yuan; Hou Bao-rong; Ma Shi-de; Wei Xu-jun

doi:10.1007/BF02842715

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Electrochemical corrosion behavior of hot dip coating in artificial seawater

Updated：2023-05-16

- Electrochemical corrosion behavior of hot dip coating in artificial seawater
- Journal of Oceanology and Limnology Vol. 17, Issue 2, Pages: 181-186(1999)
- Affiliations：
  
  1. Institute of Oceanology Chinese Academy of Sciences
  2. Nonferrous Metallurgical Department Northeastern University
- Author bio：
- Funds：
- DOI：10.1007/BF02842715
  CLC：
- Published：1999
- Accepted：
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Hu-yuan, S., Bao-rong, H., Shi-de, M. et al. Electrochemical corrosion behavior of hot dip coating in artificial seawater., Chin. J. Ocean. Limnol. 17, 181–186 (1999). https://doi.org/10.1007/BF02842715
DOI：

Hu-yuan, S., Bao-rong, H., Shi-de, M. et al. Electrochemical corrosion behavior of hot dip coating in artificial seawater., Chin. J. Ocean. Limnol. 17, 181–186 (1999). https://doi.org/10.1007/BF02842715 DOI：

摘要

Abstract

The corrosion behavior of a zinc-based alloy (compared with that of pure zinc) coating was studied in this research on the electrochemical corrosion behavior of hot dip coating in artificial seawater. The electrochemical parameters of these two hot dip coatings were measured by the galvanostatic method and accelerated corrosion test. The two coatings showed uniform corrosion

but the corrosion of the pure zinc coating was actively sustained continuously. The corrosion of the zinc-based alloy coating was very slow because of the formation of a stable anti-corrosion membrane. The corrosion mechanisms of these two coatings were also compared by the weak polarization curve fitting method. The corrosion of the zinc-based alloy coating is typical of that in natural passive corrosion system.

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references

ASTM Standard D 1141, 1990. Standard specification for substitute ocean water, ASTM Annual Book of Standard, Vol. 11.02, 423.

Cao, C. N., 1985. Estimation of electrochemical kinetic parameters of corrosion processes by weak polarization curve fitting.Journal of Chinese Society of Corrosion and Protection 5(3): 155–163. (in Chinese with English abstract)

Sun, H. Y., 1996. A study of hot dip coating steel on the electrochemical and chemical corrosion in seawater. Ph. D. Dissertation of Northeastern University, Shenyang, 1996. 12, 128p. (in Chinese with English abstract)

Sun, H. Y., Wei, X. J., 1996. A computer analysis method for galvanostatic charge curve.Journal of Chinese Society of Corrosion and Protection 16(2): 157–160. (in Chinese with English abstract)

Zhang, J. Q., Niu, Y., Wu, W. T., 1990. Electrochemical evaluation of corrosion resistance of metals and alloys in molten salts-polarization curve fitting.Journal of Chinese Society of Corrosion and Protection 10(3): 207–215. (in Chinese with English abstract)

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