Microstructure Refinement on Crevice Corrosion of High-Speed Rail Steel U75V Visualized by an In Situ Monitoring System
Rail foot covered by a fastener will suffer from crevice corrosion, leading to thinning and localized attack of crevice interior posing a risk of failure. This work investigated crevice corrosion behavior of a typical pearlitic high-speed rail steel U75V, focusing for the first time on the effect of...
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| Format: | Article |
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Frontiers Media S.A.
2022-01-01
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| Series: | Frontiers in Materials |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2021.820721/full |
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| author | Jian Wang Jian Wang Jian Wang Binbin Zhang Binbin Zhang Binbin Zhang Weichen Xu Weichen Xu Weichen Xu Jie Zhang Jie Zhang Jie Zhang Lihui Yang Lihui Yang Lihui Yang Zhongbo Peng Baorong Hou Baorong Hou Baorong Hou |
| author_facet | Jian Wang Jian Wang Jian Wang Binbin Zhang Binbin Zhang Binbin Zhang Weichen Xu Weichen Xu Weichen Xu Jie Zhang Jie Zhang Jie Zhang Lihui Yang Lihui Yang Lihui Yang Zhongbo Peng Baorong Hou Baorong Hou Baorong Hou |
| author_sort | Jian Wang |
| collection | DOAJ |
| description | Rail foot covered by a fastener will suffer from crevice corrosion, leading to thinning and localized attack of crevice interior posing a risk of failure. This work investigated crevice corrosion behavior of a typical pearlitic high-speed rail steel U75V, focusing for the first time on the effect of pearlitic microstructure refinement achieved by heat treatment with different cooling rates 2, 5, and 10°C/s. Under anodic polarization, localized dissolved spots presented on the as-received sample, where crevice corrosion mostly initiated from. For cooling rates 2 and 5°C/s, localized dissolved spots were also observed but crevice corrosion was mostly presented as general corrosion instead of from local spots, ascribed to enhanced tendency of uniform dissolution due to microstructure refinement and homogenization. For cooling rate 10°C/s, crevice corrosion expanded flocculently, ascribed to preferential dissolution of pearlitic nodules with entangled cementite due to over refinement. Crevice corrosion was obviously accelerated by microstructure refinement. Cooling rates 5 and 10°C/s led to the fastest and slowest expansion of the corroded area, respectively, while the corrosion depth was just the opposite based on the same amount of metal loss. This work provides important information regarding the effect of pearlitic microstructure refinement on crevice corrosion and introduces a facile method for in situ monitoring of crevice corrosion. |
| first_indexed | 2024-04-11T20:57:56Z |
| format | Article |
| id | doaj.art-ffc5798c68da4e6f8db87b380776c7c0 |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-04-11T20:57:56Z |
| publishDate | 2022-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-ffc5798c68da4e6f8db87b380776c7c02022-12-22T04:03:38ZengFrontiers Media S.A.Frontiers in Materials2296-80162022-01-01810.3389/fmats.2021.820721820721Microstructure Refinement on Crevice Corrosion of High-Speed Rail Steel U75V Visualized by an In Situ Monitoring SystemJian Wang0Jian Wang1Jian Wang2Binbin Zhang3Binbin Zhang4Binbin Zhang5Weichen Xu6Weichen Xu7Weichen Xu8Jie Zhang9Jie Zhang10Jie Zhang11Lihui Yang12Lihui Yang13Lihui Yang14Zhongbo Peng15Baorong Hou16Baorong Hou17Baorong Hou18Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaOpen Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, ChinaSchool of Shipping and Naval Architecture, Chongqing Jiaotong University, Chongqing, ChinaKey Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaOpen Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, ChinaCenter for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, ChinaKey Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaOpen Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, ChinaCenter for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, ChinaKey Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaOpen Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, ChinaCenter for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, ChinaKey Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaOpen Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, ChinaCenter for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, ChinaSchool of Shipping and Naval Architecture, Chongqing Jiaotong University, Chongqing, ChinaKey Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, ChinaOpen Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, ChinaCenter for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, ChinaRail foot covered by a fastener will suffer from crevice corrosion, leading to thinning and localized attack of crevice interior posing a risk of failure. This work investigated crevice corrosion behavior of a typical pearlitic high-speed rail steel U75V, focusing for the first time on the effect of pearlitic microstructure refinement achieved by heat treatment with different cooling rates 2, 5, and 10°C/s. Under anodic polarization, localized dissolved spots presented on the as-received sample, where crevice corrosion mostly initiated from. For cooling rates 2 and 5°C/s, localized dissolved spots were also observed but crevice corrosion was mostly presented as general corrosion instead of from local spots, ascribed to enhanced tendency of uniform dissolution due to microstructure refinement and homogenization. For cooling rate 10°C/s, crevice corrosion expanded flocculently, ascribed to preferential dissolution of pearlitic nodules with entangled cementite due to over refinement. Crevice corrosion was obviously accelerated by microstructure refinement. Cooling rates 5 and 10°C/s led to the fastest and slowest expansion of the corroded area, respectively, while the corrosion depth was just the opposite based on the same amount of metal loss. This work provides important information regarding the effect of pearlitic microstructure refinement on crevice corrosion and introduces a facile method for in situ monitoring of crevice corrosion.https://www.frontiersin.org/articles/10.3389/fmats.2021.820721/fullmicrostructurecrevice corrosionpearlitecooling rateU75V rail steelinterlamellar spacing |
| spellingShingle | Jian Wang Jian Wang Jian Wang Binbin Zhang Binbin Zhang Binbin Zhang Weichen Xu Weichen Xu Weichen Xu Jie Zhang Jie Zhang Jie Zhang Lihui Yang Lihui Yang Lihui Yang Zhongbo Peng Baorong Hou Baorong Hou Baorong Hou Microstructure Refinement on Crevice Corrosion of High-Speed Rail Steel U75V Visualized by an In Situ Monitoring System Frontiers in Materials microstructure crevice corrosion pearlite cooling rate U75V rail steel interlamellar spacing |
| title | Microstructure Refinement on Crevice Corrosion of High-Speed Rail Steel U75V Visualized by an In Situ Monitoring System |
| title_full | Microstructure Refinement on Crevice Corrosion of High-Speed Rail Steel U75V Visualized by an In Situ Monitoring System |
| title_fullStr | Microstructure Refinement on Crevice Corrosion of High-Speed Rail Steel U75V Visualized by an In Situ Monitoring System |
| title_full_unstemmed | Microstructure Refinement on Crevice Corrosion of High-Speed Rail Steel U75V Visualized by an In Situ Monitoring System |
| title_short | Microstructure Refinement on Crevice Corrosion of High-Speed Rail Steel U75V Visualized by an In Situ Monitoring System |
| title_sort | microstructure refinement on crevice corrosion of high speed rail steel u75v visualized by an in situ monitoring system |
| topic | microstructure crevice corrosion pearlite cooling rate U75V rail steel interlamellar spacing |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2021.820721/full |
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