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The transformation of corrosion products on 0Cu2Cr carbon steel in the marine

Hongyu Liu (School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, China)
Yingxue Teng (School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, China)
Jing Guo (School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, China)
Qinghe Xiao (School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, China)
Miao Wang (School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, China)
QiHang Pang (School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, China)
Shengli Li (School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, China)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 6 September 2021

Issue publication date: 17 September 2021

87

Abstract

Purpose

This paper aims to explore the transformation process and transformation mechanism of carbon steel under the marine environment.

Design/methodology/approach

In this paper, the transformation and rust layers corrosion products on 0Cu2Cr carbon steel with different cycles coupon test was investigated and deeply explored by scanning electron microscope, energy dispersive spectrometer, X-ray diffraction.

Findings

The results showed that the thickness of rust layers grew from 71.83 µm to 533.7 µm with increasing duration of corrosion. The initial corrosion product was γ-FeOOH, then part of the γ-FeOOH continued growing, and under the capillary action, the other part of the γ-FeOOH transformed to α-FeOOH.

Originality/value

To the best of the authors’ knowledge, this paper puts forward for the first time a new viewpoint of the development of corrosion products of low-carbon steel in two ways. This discovery provides a new idea for the future development of steel for marine engineering.

Keywords

Acknowledgements

This work was supported by the National Natural Science Foundation of China (No.51974155, No.52074149, No.52004122), the National Key Research and Development Program of China (2017YFB0304201), the University of Science and Technology Liaoning Graduate Science and Technology Innovation Project (LKDYC202002), and the University of Science and Technology Liaoning Talents Program (2019RC10).

Conflict of Interest: The authors declare no financial or commercial conflict of interest.Authors contribution: HongYu Liu and YingXue Teng have contributed equally to this work.

Citation

Liu, H., Teng, Y., Guo, J., Xiao, Q., Wang, M., Pang, Q. and Li, S. (2021), "The transformation of corrosion products on 0Cu2Cr carbon steel in the marine", Anti-Corrosion Methods and Materials, Vol. 68 No. 5, pp. 457-463. https://doi.org/10.1108/ACMM-06-2021-2496

Publisher

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Emerald Publishing Limited

Copyright © 2021, Emerald Publishing Limited

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