Corrosion Behavior of AZ31B Magnesium Alloy Anode by Sulfate-Reducing Prokaryotes in the Tidal Flat Mud with Different Water Contents
At present, there are few studies on microbial corrosion of magnesium anode materials that provide protection for oil pipelines in tidal flat environment. In view of an abnormal failure of magnesium anodes in oil pipelines in a tidal flat mud environment, the influence of the change in water content...
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MDPI AG
2022-11-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/10/11/293 |
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| author | Jinrong Li Ruiyong Zhang Wolfgang Sand Qingjun Zhu Xin Liu Jizhou Duan Baorong Hou Jie Zhang |
| author_facet | Jinrong Li Ruiyong Zhang Wolfgang Sand Qingjun Zhu Xin Liu Jizhou Duan Baorong Hou Jie Zhang |
| author_sort | Jinrong Li |
| collection | DOAJ |
| description | At present, there are few studies on microbial corrosion of magnesium anode materials that provide protection for oil pipelines in tidal flat environment. In view of an abnormal failure of magnesium anodes in oil pipelines in a tidal flat mud environment, the influence of the change in water content in the beach mud on the corrosion of AZ31B magnesium anode by sulfate-reducing prokaryote (SRP) was investigated by electrochemical methods, weight loss and surface analysis techniques. SRP can grow well in a tidal flat mud environment and cause microbial corrosion of magnesium alloy. The results show that with the increase in water content, the number of SRP cells in the mud increased, that the corrosivity of tidal flat muds was enhanced and that the corrosion rate of AZ31B magnesium anode was accelerated: compared with the corrosion rate of 0.554 mm/y in 40% water content, the corrosion rate of magnesium alloy samples in 60% water content is as high as 1.38 mm/y. |
| first_indexed | 2024-03-09T18:54:32Z |
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| institution | Directory Open Access Journal |
| issn | 2075-4442 |
| language | English |
| last_indexed | 2024-03-09T18:54:32Z |
| publishDate | 2022-11-01 |
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| series | Lubricants |
| spelling | doaj.art-23e0270bea74472381cc44830dc310f52023-11-24T05:32:05ZengMDPI AGLubricants2075-44422022-11-01101129310.3390/lubricants10110293Corrosion Behavior of AZ31B Magnesium Alloy Anode by Sulfate-Reducing Prokaryotes in the Tidal Flat Mud with Different Water ContentsJinrong Li0Ruiyong Zhang1Wolfgang Sand2Qingjun Zhu3Xin Liu4Jizhou Duan5Baorong Hou6Jie Zhang7College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, ChinaKey Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaInstitute of Biosciences, University of Mining and Technology, 09599 Freiberg, GermanyKey Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaCollege of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, ChinaKey Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaKey Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaKey Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaAt present, there are few studies on microbial corrosion of magnesium anode materials that provide protection for oil pipelines in tidal flat environment. In view of an abnormal failure of magnesium anodes in oil pipelines in a tidal flat mud environment, the influence of the change in water content in the beach mud on the corrosion of AZ31B magnesium anode by sulfate-reducing prokaryote (SRP) was investigated by electrochemical methods, weight loss and surface analysis techniques. SRP can grow well in a tidal flat mud environment and cause microbial corrosion of magnesium alloy. The results show that with the increase in water content, the number of SRP cells in the mud increased, that the corrosivity of tidal flat muds was enhanced and that the corrosion rate of AZ31B magnesium anode was accelerated: compared with the corrosion rate of 0.554 mm/y in 40% water content, the corrosion rate of magnesium alloy samples in 60% water content is as high as 1.38 mm/y.https://www.mdpi.com/2075-4442/10/11/293sulfate-reducing prokaryoteswater contentAZ31B magnesium anodetidal flat soil |
| spellingShingle | Jinrong Li Ruiyong Zhang Wolfgang Sand Qingjun Zhu Xin Liu Jizhou Duan Baorong Hou Jie Zhang Corrosion Behavior of AZ31B Magnesium Alloy Anode by Sulfate-Reducing Prokaryotes in the Tidal Flat Mud with Different Water Contents Lubricants sulfate-reducing prokaryotes water content AZ31B magnesium anode tidal flat soil |
| title | Corrosion Behavior of AZ31B Magnesium Alloy Anode by Sulfate-Reducing Prokaryotes in the Tidal Flat Mud with Different Water Contents |
| title_full | Corrosion Behavior of AZ31B Magnesium Alloy Anode by Sulfate-Reducing Prokaryotes in the Tidal Flat Mud with Different Water Contents |
| title_fullStr | Corrosion Behavior of AZ31B Magnesium Alloy Anode by Sulfate-Reducing Prokaryotes in the Tidal Flat Mud with Different Water Contents |
| title_full_unstemmed | Corrosion Behavior of AZ31B Magnesium Alloy Anode by Sulfate-Reducing Prokaryotes in the Tidal Flat Mud with Different Water Contents |
| title_short | Corrosion Behavior of AZ31B Magnesium Alloy Anode by Sulfate-Reducing Prokaryotes in the Tidal Flat Mud with Different Water Contents |
| title_sort | corrosion behavior of az31b magnesium alloy anode by sulfate reducing prokaryotes in the tidal flat mud with different water contents |
| topic | sulfate-reducing prokaryotes water content AZ31B magnesium anode tidal flat soil |
| url | https://www.mdpi.com/2075-4442/10/11/293 |
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