Effect of Mn on Corrosion Resistance of Low-Cr Weathering Steel
As the pace of human development in the ocean accelerates, the demand for corrosion-resistant building materials in marine engineering projects is constantly increasing. The development of high-performance corrosion-resistant materials and their mechanism research has gradually become the latest hot...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/14/12/1433 |
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| author | Guangbo Zhang Huanhuan Zhang Xingyu Liu Yuchen Xin Shubiao Yin Lei Gao Zhe Shi |
| author_facet | Guangbo Zhang Huanhuan Zhang Xingyu Liu Yuchen Xin Shubiao Yin Lei Gao Zhe Shi |
| author_sort | Guangbo Zhang |
| collection | DOAJ |
| description | As the pace of human development in the ocean accelerates, the demand for corrosion-resistant building materials in marine engineering projects is constantly increasing. The development of high-performance corrosion-resistant materials and their mechanism research has gradually become the latest hotspot in the field of metal materials. Through cyclic dry–wet testing, electrochemical techniques, morphological characterization, and compositional analysis, this study simulated the impact of varying manganese content on weathering steel corrosion resistance in chloride environments. The results indicated that, compared to low-manganese weathering steel, the average rust layer thickness of high-manganese weathering steel increased by 22.5%. Additionally, manganese was found in the rust as MnO/MnO<sub>2</sub>, acting as a catalyst to promote electron transfer, which led to a decrease in the α/γ* ratio in the high-manganese weathering steel, thereby accelerating the corrosion reaction. |
| format | Article |
| id | doaj-art-f41f566a9ff943fa97abf9d7a534b5fa |
| institution | Kabale University |
| issn | 2075-4701 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj-art-f41f566a9ff943fa97abf9d7a534b5fa2024-12-27T14:40:05ZengMDPI AGMetals2075-47012024-12-011412143310.3390/met14121433Effect of Mn on Corrosion Resistance of Low-Cr Weathering SteelGuangbo Zhang0Huanhuan Zhang1Xingyu Liu2Yuchen Xin3Shubiao Yin4Lei Gao5Zhe Shi6Faculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, ChinaFaculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaAs the pace of human development in the ocean accelerates, the demand for corrosion-resistant building materials in marine engineering projects is constantly increasing. The development of high-performance corrosion-resistant materials and their mechanism research has gradually become the latest hotspot in the field of metal materials. Through cyclic dry–wet testing, electrochemical techniques, morphological characterization, and compositional analysis, this study simulated the impact of varying manganese content on weathering steel corrosion resistance in chloride environments. The results indicated that, compared to low-manganese weathering steel, the average rust layer thickness of high-manganese weathering steel increased by 22.5%. Additionally, manganese was found in the rust as MnO/MnO<sub>2</sub>, acting as a catalyst to promote electron transfer, which led to a decrease in the α/γ* ratio in the high-manganese weathering steel, thereby accelerating the corrosion reaction.https://www.mdpi.com/2075-4701/14/12/1433weathering steelmanganese contentchloride environmentcorrosion reaction |
| spellingShingle | Guangbo Zhang Huanhuan Zhang Xingyu Liu Yuchen Xin Shubiao Yin Lei Gao Zhe Shi Effect of Mn on Corrosion Resistance of Low-Cr Weathering Steel Metals weathering steel manganese content chloride environment corrosion reaction |
| title | Effect of Mn on Corrosion Resistance of Low-Cr Weathering Steel |
| title_full | Effect of Mn on Corrosion Resistance of Low-Cr Weathering Steel |
| title_fullStr | Effect of Mn on Corrosion Resistance of Low-Cr Weathering Steel |
| title_full_unstemmed | Effect of Mn on Corrosion Resistance of Low-Cr Weathering Steel |
| title_short | Effect of Mn on Corrosion Resistance of Low-Cr Weathering Steel |
| title_sort | effect of mn on corrosion resistance of low cr weathering steel |
| topic | weathering steel manganese content chloride environment corrosion reaction |
| url | https://www.mdpi.com/2075-4701/14/12/1433 |
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