Nonuniform Corrosion in the Vertical Direction of Q345 Steel in a Real Ocean Environment
The aim of this investigation was to study nonuniform corrosion in the vertical direction of Q345 steel in the South China Sea. First, a metal corrosion monitoring system was designed and applied based on the coulometer principle and array electrode technology. Then, through coulometer testing, weig...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/joch/6588857 |
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| _version_ | 1832575559926808576 |
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| author | Jiezhen Hu Huan Huang Xin Hu Peichang Deng Guo Zheng Jiahong Chen Zhiwen Tu |
| author_facet | Jiezhen Hu Huan Huang Xin Hu Peichang Deng Guo Zheng Jiahong Chen Zhiwen Tu |
| author_sort | Jiezhen Hu |
| collection | DOAJ |
| description | The aim of this investigation was to study nonuniform corrosion in the vertical direction of Q345 steel in the South China Sea. First, a metal corrosion monitoring system was designed and applied based on the coulometer principle and array electrode technology. Then, through coulometer testing, weightlessness analysis, electrochemical testing, and surface morphology observation, the corrosion behavior of Q345 steel used in an offshore wind turbine in Zhanjiang Bay in the South China Sea was studied. The results revealed that within the first 30 days of the experiment, the array electrodes connected by electricity exhibited sacrificial anode/cathode protection with self-coupling. Therefore, the corrosion rates of the electrodes were slowed. Between 60 and 120 days, the array electrodes underwent a transition in the anode/cathode region. In actual marine environments, the most severely corroded areas of long metal structures were near the sea surface and seabed and had to be prioritized for protection. |
| format | Article |
| id | doaj-art-f41efd86888b4376aa2d00c1023416c5 |
| institution | Kabale University |
| issn | 2090-9071 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-f41efd86888b4376aa2d00c1023416c52025-02-01T00:00:04ZengWileyJournal of Chemistry2090-90712025-01-01202510.1155/joch/6588857Nonuniform Corrosion in the Vertical Direction of Q345 Steel in a Real Ocean EnvironmentJiezhen Hu0Huan Huang1Xin Hu2Peichang Deng3Guo Zheng4Jiahong Chen5Zhiwen Tu6College of Mechanical EngineeringCollege of Mechanical EngineeringCollege of Mechanical EngineeringZhanjiang Key Laboratory of Corrosion and Protection of Ocean Engineering EquipmentZhanjiang Power Company LimitedCollege of Mechanical EngineeringCollege of Mechanical EngineeringThe aim of this investigation was to study nonuniform corrosion in the vertical direction of Q345 steel in the South China Sea. First, a metal corrosion monitoring system was designed and applied based on the coulometer principle and array electrode technology. Then, through coulometer testing, weightlessness analysis, electrochemical testing, and surface morphology observation, the corrosion behavior of Q345 steel used in an offshore wind turbine in Zhanjiang Bay in the South China Sea was studied. The results revealed that within the first 30 days of the experiment, the array electrodes connected by electricity exhibited sacrificial anode/cathode protection with self-coupling. Therefore, the corrosion rates of the electrodes were slowed. Between 60 and 120 days, the array electrodes underwent a transition in the anode/cathode region. In actual marine environments, the most severely corroded areas of long metal structures were near the sea surface and seabed and had to be prioritized for protection.http://dx.doi.org/10.1155/joch/6588857 |
| spellingShingle | Jiezhen Hu Huan Huang Xin Hu Peichang Deng Guo Zheng Jiahong Chen Zhiwen Tu Nonuniform Corrosion in the Vertical Direction of Q345 Steel in a Real Ocean Environment Journal of Chemistry |
| title | Nonuniform Corrosion in the Vertical Direction of Q345 Steel in a Real Ocean Environment |
| title_full | Nonuniform Corrosion in the Vertical Direction of Q345 Steel in a Real Ocean Environment |
| title_fullStr | Nonuniform Corrosion in the Vertical Direction of Q345 Steel in a Real Ocean Environment |
| title_full_unstemmed | Nonuniform Corrosion in the Vertical Direction of Q345 Steel in a Real Ocean Environment |
| title_short | Nonuniform Corrosion in the Vertical Direction of Q345 Steel in a Real Ocean Environment |
| title_sort | nonuniform corrosion in the vertical direction of q345 steel in a real ocean environment |
| url | http://dx.doi.org/10.1155/joch/6588857 |
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