Mechanistic role of vanadium microalloying in improving corrosion resistance of low carbon bainitic steel
We here investigated the effect of vanadium microalloying on the microstructure, mechanical properties, especially corrosion performances of low carbon bainitic steels. The corrosion behaviors of the steels with different vanadium contents in 3.5 wt% NaCl solution were evaluated by electrochemical t...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424021550 |
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| author | Chun Feng Lijuan Zhu Xuan Cheng Zhi Li Xiaolu Gui Guhui Gao |
| author_facet | Chun Feng Lijuan Zhu Xuan Cheng Zhi Li Xiaolu Gui Guhui Gao |
| author_sort | Chun Feng |
| collection | DOAJ |
| description | We here investigated the effect of vanadium microalloying on the microstructure, mechanical properties, especially corrosion performances of low carbon bainitic steels. The corrosion behaviors of the steels with different vanadium contents in 3.5 wt% NaCl solution were evaluated by electrochemical tests (including polarization curves and electrochemical impedance spectroscopic measurements) and alternating immersion test (including weight loss and rust layer observation). Results show that the mechanical properties and corrosion resistance of low carbon bainitic steels can be synergistically improved with vanadium microalloying. With help of the electron backscatter diffraction characterization and scanning Kelvin probe force microscopy, we first discovered that although the number of micro-galvanic couples increases because of grain refinement, the Volta potential gradient between the matrix and grain boundaries are decreased with vanadium microalloying, which can promote the formation of compact protective rust layers and improve the corrosion resistance of vanadium micro-alloyed low carbon bainitic steels. |
| format | Article |
| id | doaj-art-d1dfc11d4f00470a9e60c7b4e01db552 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-d1dfc11d4f00470a9e60c7b4e01db5522024-12-26T08:53:52ZengElsevierJournal of Materials Research and Technology2238-78542024-11-0133982993Mechanistic role of vanadium microalloying in improving corrosion resistance of low carbon bainitic steelChun Feng0Lijuan Zhu1Xuan Cheng2Zhi Li3Xiaolu Gui4Guhui Gao5State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, Tubular Goods Research Institute of CNPC, Xi'an, 710077, China; CNPC Bohai Equipment Manufacturing CO., LTD., Tian Jin, 300457, ChinaState Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, Tubular Goods Research Institute of CNPC, Xi'an, 710077, China; Corresponding author.School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, 100044, ChinaSchool of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, 100044, ChinaSchool of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, 100044, ChinaSchool of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, 100044, China; Corresponding author.We here investigated the effect of vanadium microalloying on the microstructure, mechanical properties, especially corrosion performances of low carbon bainitic steels. The corrosion behaviors of the steels with different vanadium contents in 3.5 wt% NaCl solution were evaluated by electrochemical tests (including polarization curves and electrochemical impedance spectroscopic measurements) and alternating immersion test (including weight loss and rust layer observation). Results show that the mechanical properties and corrosion resistance of low carbon bainitic steels can be synergistically improved with vanadium microalloying. With help of the electron backscatter diffraction characterization and scanning Kelvin probe force microscopy, we first discovered that although the number of micro-galvanic couples increases because of grain refinement, the Volta potential gradient between the matrix and grain boundaries are decreased with vanadium microalloying, which can promote the formation of compact protective rust layers and improve the corrosion resistance of vanadium micro-alloyed low carbon bainitic steels.http://www.sciencedirect.com/science/article/pii/S2238785424021550Bainitic steelVanadium microalloyingElectrochemical testsMicrostructureCorrosion performance |
| spellingShingle | Chun Feng Lijuan Zhu Xuan Cheng Zhi Li Xiaolu Gui Guhui Gao Mechanistic role of vanadium microalloying in improving corrosion resistance of low carbon bainitic steel Journal of Materials Research and Technology Bainitic steel Vanadium microalloying Electrochemical tests Microstructure Corrosion performance |
| title | Mechanistic role of vanadium microalloying in improving corrosion resistance of low carbon bainitic steel |
| title_full | Mechanistic role of vanadium microalloying in improving corrosion resistance of low carbon bainitic steel |
| title_fullStr | Mechanistic role of vanadium microalloying in improving corrosion resistance of low carbon bainitic steel |
| title_full_unstemmed | Mechanistic role of vanadium microalloying in improving corrosion resistance of low carbon bainitic steel |
| title_short | Mechanistic role of vanadium microalloying in improving corrosion resistance of low carbon bainitic steel |
| title_sort | mechanistic role of vanadium microalloying in improving corrosion resistance of low carbon bainitic steel |
| topic | Bainitic steel Vanadium microalloying Electrochemical tests Microstructure Corrosion performance |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424021550 |
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