Development of facile image processing techniques regarding crevice corrosion of U75V high-speed rail steel
In-situ crevice corrosion images of U75V high-speed rail steel samples before and after heat treatment for microstructure refinement were obtained by a self-developed monitoring device, and facile image processing techniques have been developed. Gray value and entropy have been demonstrated to be th...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-01-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422019457 |
| _version_ | 1797942999610556416 |
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| author | Jian Wang Zhongbo Peng Binbin Zhang Yu Deng Jie Zhang Weichen Xu |
| author_facet | Jian Wang Zhongbo Peng Binbin Zhang Yu Deng Jie Zhang Weichen Xu |
| author_sort | Jian Wang |
| collection | DOAJ |
| description | In-situ crevice corrosion images of U75V high-speed rail steel samples before and after heat treatment for microstructure refinement were obtained by a self-developed monitoring device, and facile image processing techniques have been developed. Gray value and entropy have been demonstrated to be the significant parameters able to describe the process of crevice corrosion. Gray value has been found to have good correlation with corrosion depth, and distribution of column average gray value can be applied to obtain corrosion depth profiles along crevice depth. Gray histogram is a good indicator to distinguish local preferential dissolution and uniform dissolution via deviation from original peak position and valley height. Entropy means uncertainty of how corrosion patterns develop. Its increase indicates high activity for change of corrosion patterns, while low activity leads to cease of increase. When metal surface has been corroded extensively, entropy will decrease, indicating less potential routes for development of corrosion patterns. This work has provided new ideas on the application of image processing on corrosion study. |
| first_indexed | 2024-04-10T20:17:28Z |
| format | Article |
| id | doaj.art-21219bc497e24fb9a09721829afc71f3 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-10T20:17:28Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-21219bc497e24fb9a09721829afc71f32023-01-26T04:46:12ZengElsevierJournal of Materials Research and Technology2238-78542023-01-012219481960Development of facile image processing techniques regarding crevice corrosion of U75V high-speed rail steelJian Wang0Zhongbo Peng1Binbin Zhang2Yu Deng3Jie Zhang4Weichen Xu5School of Shipping and Naval Architecture, Chongqing Jiaotong University, Chongqing 400074, People's Republic of China; Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, People's Republic of ChinaSchool of Shipping and Naval Architecture, Chongqing Jiaotong University, Chongqing 400074, People's Republic of ChinaKey Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, People's Republic of China; Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, People's Republic of China; Institute of Marine Corrosion Protection, Guangxi Academy of Sciences, Nanning 530007, People's Republic of China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, People's Republic of ChinaSchool of Shipping and Naval Architecture, Chongqing Jiaotong University, Chongqing 400074, People's Republic of China; Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, People's Republic of ChinaKey Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, People's Republic of China; Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, People's Republic of China; Institute of Marine Corrosion Protection, Guangxi Academy of Sciences, Nanning 530007, People's Republic of China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, People's Republic of China; Corresponding author.Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, People's Republic of China; Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, People's Republic of China; Institute of Marine Corrosion Protection, Guangxi Academy of Sciences, Nanning 530007, People's Republic of China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, People's Republic of China; Corresponding author.In-situ crevice corrosion images of U75V high-speed rail steel samples before and after heat treatment for microstructure refinement were obtained by a self-developed monitoring device, and facile image processing techniques have been developed. Gray value and entropy have been demonstrated to be the significant parameters able to describe the process of crevice corrosion. Gray value has been found to have good correlation with corrosion depth, and distribution of column average gray value can be applied to obtain corrosion depth profiles along crevice depth. Gray histogram is a good indicator to distinguish local preferential dissolution and uniform dissolution via deviation from original peak position and valley height. Entropy means uncertainty of how corrosion patterns develop. Its increase indicates high activity for change of corrosion patterns, while low activity leads to cease of increase. When metal surface has been corroded extensively, entropy will decrease, indicating less potential routes for development of corrosion patterns. This work has provided new ideas on the application of image processing on corrosion study.http://www.sciencedirect.com/science/article/pii/S2238785422019457Crevice corrosionImage processingU75V high-speed rail steelGray valueEntropy |
| spellingShingle | Jian Wang Zhongbo Peng Binbin Zhang Yu Deng Jie Zhang Weichen Xu Development of facile image processing techniques regarding crevice corrosion of U75V high-speed rail steel Journal of Materials Research and Technology Crevice corrosion Image processing U75V high-speed rail steel Gray value Entropy |
| title | Development of facile image processing techniques regarding crevice corrosion of U75V high-speed rail steel |
| title_full | Development of facile image processing techniques regarding crevice corrosion of U75V high-speed rail steel |
| title_fullStr | Development of facile image processing techniques regarding crevice corrosion of U75V high-speed rail steel |
| title_full_unstemmed | Development of facile image processing techniques regarding crevice corrosion of U75V high-speed rail steel |
| title_short | Development of facile image processing techniques regarding crevice corrosion of U75V high-speed rail steel |
| title_sort | development of facile image processing techniques regarding crevice corrosion of u75v high speed rail steel |
| topic | Crevice corrosion Image processing U75V high-speed rail steel Gray value Entropy |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422019457 |
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