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| Distribution Law of Chloride Ion Deposition on the Surface of Q235 Steel under Marine Atmospheric Environment |
| Received:April 06, 2023 Revised:June 15, 2023 |
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| DOI：10.7643/issn.1672-9242.2023.11.020 |
| KeyWord:chloride ion deposition marine atmospheric environment Q235 steel X-ray fluorescence spectrometer interpolation algorithm corrosion |
| Author | Institution |
| HE Qiong-yao |
Southwest Institute of Technology and Engineering, Chongqing , China;Chongqing Key Laboratory of Environmental Effects and Protection, Chongqing , China;Wanning Materials Corrosion National Observation and Research Station, Hainan Wanning , China |
| WU Yao |
Southwest Institute of Technology and Engineering, Chongqing , China;Chongqing Key Laboratory of Environmental Effects and Protection, Chongqing , China |
| LIU Cong |
Southwest Institute of Technology and Engineering, Chongqing , China;Chongqing Key Laboratory of Environmental Effects and Protection, Chongqing , China;Wanning Materials Corrosion National Observation and Research Station, Hainan Wanning , China |
| GUO Zan-hong |
Southwest Institute of Technology and Engineering, Chongqing , China;Chongqing Key Laboratory of Environmental Effects and Protection, Chongqing , China |
| LI Xu |
Southwest Institute of Technology and Engineering, Chongqing , China;Chongqing Key Laboratory of Environmental Effects and Protection, Chongqing , China |
| ZHANG Li-juan |
Chongqing Aerospace Polytechnic, Chongqing , China |
| LI Jing-yu |
Wanning Materials Corrosion National Observation and Research Station, Hainan Wanning , China |
| ZHAO Fang-chao |
Southwest Institute of Technology and Engineering, Chongqing , China;Chongqing Key Laboratory of Environmental Effects and Protection, Chongqing , China;Wanning Materials Corrosion National Observation and Research Station, Hainan Wanning , China |
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| Abstract: |
| The work aims to study the distribution law of chloride ion deposition on Q235 steel surface in marine atmospheric environment. First of all, a portable X-ray fluorescence spectrometer was used to test the chloride ion deposition on the Q235 steel surface exposed to the atmospheric environment at different places in Hainan Island, and then the interpolation algorithm was used to draw the distribution map of chloride ion deposition on the Q235 steel surface and the distribution map of the average chloride ion deposition on the Q235 steel surface at different places in Hainan Island. Finally, according to the distribution maps, the distribution law of chloride ion deposition on the Q235 steel surface was analyzed. The distribution of chloride ions on the surface of Q235 steel was uneven. In the first six months of the environmental test, the content of chloride ions on the surface of Q235 steel gradually increased, and the content of chloride ions on the surface of Q235 steel exposed for 6-12 months had little overall change. In the whole Hainan Island, the amount of chloride ions deposited on the surface of Q235 steel in the inland area was low, while the amount of chloride ions deposited in the coastal roundabout area was high. In the coastal area of Hainan Island, the chloride ion deposition on the surface of Q235 steel changed with the change of monsoon wind direction, resulting in the chloride ion deposition in different directions of Hainan Island changing with the seasons. The chloride ions are unevenly distributed on the surface of Q235 steel. The chloride ion deposition on the surface of Q235 steel at different places in Hainan Island is "low in the middle and high on both sides". The deposition in inland areas is low, while the deposition in coastal roundabout areas is high, and the chloride ion deposition in coastal areas is easily affected by monsoon wind direction. |
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