Corrosion behavior of Q345R steel influenced by Thiobacillus ferrooxidans
Here, the corrosion weight-loss method, surface analysis technology, and electrochemical test methods were used to study the corrosion behavior and electrochemical characteristics of experimental samples of Q345R steel in a sterile solution (pH 2.0) and a solution containing T. ferrooxidans . The gr...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2021-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ac316a |
| _version_ | 1797746726010880000 |
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| author | Xin Jie Huang Lei Fu Li Lin Sheng Lai Qi Fan Yingqian Zhang Xiulan Li Cheng Liu |
| author_facet | Xin Jie Huang Lei Fu Li Lin Sheng Lai Qi Fan Yingqian Zhang Xiulan Li Cheng Liu |
| author_sort | Xin Jie Huang |
| collection | DOAJ |
| description | Here, the corrosion weight-loss method, surface analysis technology, and electrochemical test methods were used to study the corrosion behavior and electrochemical characteristics of experimental samples of Q345R steel in a sterile solution (pH 2.0) and a solution containing T. ferrooxidans . The growth cycle of T. ferrooxidans was determined to be approximately 8 days. The corrosion weight-loss method showed that the corrosion rate of Q345R carbon steel coupons decreased with time in the T. ferrooxidans system and the sterile system; the corrosion rate was approximately two times higher in the T. ferrooxidans system than in the sterile system. The corrosion morphology results showed that the presence of T. ferrooxidans promotes the corrosion of Q345R steel and increases the local corrosion of the matrix material. The electrochemical test results showed that after 5 days of corrosion, the polarization resistance of the T. ferrooxidans system was approximately 50% of that of the sterile system, and the corrosion current density of the T. ferrooxidans system was approximately twice as high as that of the sterile system. Therefore, T. ferrooxidans can accelerate the corrosion of Q345R steel two-fold. |
| first_indexed | 2024-03-12T15:40:57Z |
| format | Article |
| id | doaj.art-35e0e550262a4a0dbf5d1af5775dc491 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:40:57Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-35e0e550262a4a0dbf5d1af5775dc4912023-08-09T15:57:27ZengIOP PublishingMaterials Research Express2053-15912021-01-0181010652610.1088/2053-1591/ac316aCorrosion behavior of Q345R steel influenced by Thiobacillus ferrooxidansXin Jie Huang0https://orcid.org/0000-0002-2491-7150Lei Fu1Li Lin2Sheng Lai3Qi Fan4Yingqian Zhang5Xiulan Li6Cheng Liu7School of Mechanical Engineering, Sichuan University of Science & Engineering , Yibin 644000, People’s Republic of ChinaSchool of Mechanical Engineering, Sichuan University of Science & Engineering , Yibin 644000, People’s Republic of China; Failure Mechanics and Engineering Disaster Prevention, Key Lab of Sichuan Province, Sichuan University, Chengdu, 610065, People’s Republic of ChinaSchool of Material Science and Engineering, Sichuan University of Science & Engineering , Zigong 643000, People’s Republic of China; Key Laboratory of Material Corrosion and Protection of Sichuan Province, Zigong 643000, People’s Republic of China; College of Materials and Chemistry and Chemical Engineering, Chengdu University of Technology , Chengdu 610059, People’s Republic of ChinaSchool of Mechanical Engineering, Sichuan University of Science & Engineering , Yibin 644000, People’s Republic of ChinaSchool of Mechanical Engineering, Sichuan University of Science & Engineering , Yibin 644000, People’s Republic of ChinaSchool of Civil Engineering, Sichuan University of Science & Engineering , Zigong 643000, People’s Republic of ChinaSchool of Mechanical Engineering, Sichuan University of Science & Engineering , Yibin 644000, People’s Republic of ChinaSchool of Material Science and Engineering, Sichuan University of Science & Engineering , Zigong 643000, People’s Republic of ChinaHere, the corrosion weight-loss method, surface analysis technology, and electrochemical test methods were used to study the corrosion behavior and electrochemical characteristics of experimental samples of Q345R steel in a sterile solution (pH 2.0) and a solution containing T. ferrooxidans . The growth cycle of T. ferrooxidans was determined to be approximately 8 days. The corrosion weight-loss method showed that the corrosion rate of Q345R carbon steel coupons decreased with time in the T. ferrooxidans system and the sterile system; the corrosion rate was approximately two times higher in the T. ferrooxidans system than in the sterile system. The corrosion morphology results showed that the presence of T. ferrooxidans promotes the corrosion of Q345R steel and increases the local corrosion of the matrix material. The electrochemical test results showed that after 5 days of corrosion, the polarization resistance of the T. ferrooxidans system was approximately 50% of that of the sterile system, and the corrosion current density of the T. ferrooxidans system was approximately twice as high as that of the sterile system. Therefore, T. ferrooxidans can accelerate the corrosion of Q345R steel two-fold.https://doi.org/10.1088/2053-1591/ac316aQ345R steelThiobacillus ferrooxidanscorrosion behaviorelectrochemical characteristics |
| spellingShingle | Xin Jie Huang Lei Fu Li Lin Sheng Lai Qi Fan Yingqian Zhang Xiulan Li Cheng Liu Corrosion behavior of Q345R steel influenced by Thiobacillus ferrooxidans Materials Research Express Q345R steel Thiobacillus ferrooxidans corrosion behavior electrochemical characteristics |
| title | Corrosion behavior of Q345R steel influenced by Thiobacillus ferrooxidans |
| title_full | Corrosion behavior of Q345R steel influenced by Thiobacillus ferrooxidans |
| title_fullStr | Corrosion behavior of Q345R steel influenced by Thiobacillus ferrooxidans |
| title_full_unstemmed | Corrosion behavior of Q345R steel influenced by Thiobacillus ferrooxidans |
| title_short | Corrosion behavior of Q345R steel influenced by Thiobacillus ferrooxidans |
| title_sort | corrosion behavior of q345r steel influenced by thiobacillus ferrooxidans |
| topic | Q345R steel Thiobacillus ferrooxidans corrosion behavior electrochemical characteristics |
| url | https://doi.org/10.1088/2053-1591/ac316a |
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