Wen-hua Zhang, Shan-wu Yang, Jia Guo, Zhi-yong Liu,  and Xin-lai He, Incubation and development of corrosion in microstructures of low alloy steels under a thin liquid film of NaCl aqueous solution, Int. J. Miner. Metall. Mater., 17(2010), No. 6, pp. 748-755. https://doi.org/10.1007/s12613-010-0384-7
Cite this article as:
Wen-hua Zhang, Shan-wu Yang, Jia Guo, Zhi-yong Liu,  and Xin-lai He, Incubation and development of corrosion in microstructures of low alloy steels under a thin liquid film of NaCl aqueous solution, Int. J. Miner. Metall. Mater., 17(2010), No. 6, pp. 748-755. https://doi.org/10.1007/s12613-010-0384-7

Incubation and development of corrosion in microstructures of low alloy steels under a thin liquid film of NaCl aqueous solution

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  • Corresponding author:

    Shan-wu Yang    E-mail: yangsw@master.ustb.edu.cn

  • Received: 26 January 2010Revised: 5 March 2010Accepted: 19 March 2010
  • Electrochemical measurement, optical microscopy, and scanning electron microscopy were employed to investigate the corrosion behavior of some low alloy steels. The steels were held under a thin liquid film of 0.5wt% NaCl aqueous solution. It is found that the steels with the same chemical composition but different microstructures exhibit obviously different corrosion behaviors. However, the corrosion behavior of the steels with different compositions but the same microstructures may be similar in the present investigation. The corrosion rate of bainite is slower than that of ferrite and pearlite. The corrosion products of bainite are uniform and fine. The size of carbon-rich phases produces a great impact on the corrosion of the steels, whether in the initial stage or in the long term. It is easy to induce large pitting for carbon-rich phases with large size, which damages the compactness of the rust layer.
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