Corrosion behavior research and corrosion prediction of structural steel in marine engineering
Anti-Corrosion Methods and Materials
ISSN: 0003-5599
Article publication date: 19 September 2022
Issue publication date: 13 October 2022
Abstract
Purpose
This paper aims to reveal the corrosion mechanism and corrosion development regulation of marine engineering structural steel in the marine environment and provide constructive suggestions for marine immersed tunnel engineering.
Design/methodology/approach
In this study, marine engineering structural steel’s behavior and corrosion prediction were carried out under the conditions of no cathodic protection and under-protection by artificially adding dissolved oxygen in a simulated seawater solution as a depolarizing agent.
Findings
Marine resources are rich in China. With the development of the economy and the improvement of engineering technology, marine engineering structural steel is used more and more widely. Engineering structural steel has a great risk of corrosion failure for long-term service in seawater, as seawater is a kind of corrosive medium containing various salts. At present, there are few projects and research studies available on the corrosion in the seawater environment of Q390C engineering structural steel, which is used in the Shenzhen–Zhongshan Link immersed tunnel steel shell at home and abroad. It cannot guide the corrosion of immersed tunnel steel shells in the ocean.
Originality/value
In this paper, the corrosion mechanism and corrosion development regulation of marine engineering structural steel in the marine environment are studied by accelerated corrosion test in the laboratory, which is of great significance to ensure the long-life durability of the immersed tunnel in marine engineering.
Keywords
Acknowledgements
The authors would like to change the author’s(Hang Cao) affiliation to Central Research Institute of Building and Construction Co. Ltd. MCC Group–Inspection and Certification Co. Ltd. MCC, Beijing, China, which is Department of Inspection and Certification Co. Ltd. MCC, Beijing, China’s direct superior. We apologize for any inconvenience caused.
This paper was supported by the Research and Development Program in Key Fields of Guangdong Province (2019B111105002).
Declaration of competing interest: The authors declare that there is no conflict of interest regarding the publication of this paper.
Citation
Cao, H., Wang, K., Song, S., Zhang, X., Gao, Q. and Liu, Y. (2022), "Corrosion behavior research and corrosion prediction of structural steel in marine engineering", Anti-Corrosion Methods and Materials, Vol. 69 No. 6, pp. 636-650. https://doi.org/10.1108/ACMM-06-2022-2664
Publisher
:Emerald Publishing Limited
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