Comparative analysis of hull steel corrosion in tropical marine atmosphere: Correlation between indoor simulations and outdoor exposures
Corrosion, a complex and gradual process, is best studied by directly exposing the materials to natural environments that closely mirror real-world conditions. However, this approach has limitations due to its lengthy testing periods and excessive costs. As an efficient alternative, laboratory-based...
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Elsevier
2025-01-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S026412752400950X |
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| author | Feng Gao Caifu Yang Weiyi Wang Yajun Pang Naipeng Zhou Jian Li Xiaobing Luo Feng Chai |
| author_facet | Feng Gao Caifu Yang Weiyi Wang Yajun Pang Naipeng Zhou Jian Li Xiaobing Luo Feng Chai |
| author_sort | Feng Gao |
| collection | DOAJ |
| description | Corrosion, a complex and gradual process, is best studied by directly exposing the materials to natural environments that closely mirror real-world conditions. However, this approach has limitations due to its lengthy testing periods and excessive costs. As an efficient alternative, laboratory-based accelerated corrosion tests provide a means to predict the corrosion behavior and service life of materials under long-term outdoor exposure. Current simulation tests often focus on correlating weight loss data between indoor and outdoor environments. However, they may overlook the need for a thorough examination of corrosion behavior across various conditions. This study systematically investigates the corrosion behavior of hull steel in a tropical marine atmospheric environment through a combination of indoor simulation and outdoor exposure tests. The research comprehensively analyzes the correlation between indoor and outdoor corrosion, conducting detailed examinations of the corroded materials with a focus on the properties of the rust layer. The results demonstrated a strong correlation between indoor and outdoor corrosion. However, the outdoor specimens exhibited superior protective properties, characterized by a denser rust layer, higher α/γ* ratio, lower icorr, and higher Rp. Furthermore, models capable of accurately forecasting samples’ behavior in indoor and outdoor environments were developed by using the GM (1, 1) method. The significance of this study lies in its comprehensive revelation of the differences between indoor and outdoor corrosion tests. It provides valuable insights for developing more accurate and dependable corrosion prediction models, which can optimize corrosion protection strategies for materials in marine environments. |
| format | Article |
| id | doaj-art-1b3aa99a56894f048b00568c63a97554 |
| institution | Kabale University |
| issn | 0264-1275 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-1b3aa99a56894f048b00568c63a975542025-01-09T06:12:27ZengElsevierMaterials & Design0264-12752025-01-01249113575Comparative analysis of hull steel corrosion in tropical marine atmosphere: Correlation between indoor simulations and outdoor exposuresFeng Gao0Caifu Yang1Weiyi Wang2Yajun Pang3Naipeng Zhou4Jian Li5Xiaobing Luo6Feng Chai7Institute for Structural Steels, Central Iron and Steel Research Institute, Beijing 100081, China; Corresponding authors.Institute for Structural Steels, Central Iron and Steel Research Institute, Beijing 100081, China; Corresponding authors.Institute for Structural Steels, Central Iron and Steel Research Institute, Beijing 100081, China; Faculty of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, ChinaCollege of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou 311300, ChinaInstitute for Structural Steels, Central Iron and Steel Research Institute, Beijing 100081, ChinaInstitute for Structural Steels, Central Iron and Steel Research Institute, Beijing 100081, ChinaInstitute for Structural Steels, Central Iron and Steel Research Institute, Beijing 100081, ChinaInstitute for Structural Steels, Central Iron and Steel Research Institute, Beijing 100081, ChinaCorrosion, a complex and gradual process, is best studied by directly exposing the materials to natural environments that closely mirror real-world conditions. However, this approach has limitations due to its lengthy testing periods and excessive costs. As an efficient alternative, laboratory-based accelerated corrosion tests provide a means to predict the corrosion behavior and service life of materials under long-term outdoor exposure. Current simulation tests often focus on correlating weight loss data between indoor and outdoor environments. However, they may overlook the need for a thorough examination of corrosion behavior across various conditions. This study systematically investigates the corrosion behavior of hull steel in a tropical marine atmospheric environment through a combination of indoor simulation and outdoor exposure tests. The research comprehensively analyzes the correlation between indoor and outdoor corrosion, conducting detailed examinations of the corroded materials with a focus on the properties of the rust layer. The results demonstrated a strong correlation between indoor and outdoor corrosion. However, the outdoor specimens exhibited superior protective properties, characterized by a denser rust layer, higher α/γ* ratio, lower icorr, and higher Rp. Furthermore, models capable of accurately forecasting samples’ behavior in indoor and outdoor environments were developed by using the GM (1, 1) method. The significance of this study lies in its comprehensive revelation of the differences between indoor and outdoor corrosion tests. It provides valuable insights for developing more accurate and dependable corrosion prediction models, which can optimize corrosion protection strategies for materials in marine environments.http://www.sciencedirect.com/science/article/pii/S026412752400950XTropical marine atmosphereIndoor simulationOutdoor exposureGrey correlation analysisGrey forecasting |
| spellingShingle | Feng Gao Caifu Yang Weiyi Wang Yajun Pang Naipeng Zhou Jian Li Xiaobing Luo Feng Chai Comparative analysis of hull steel corrosion in tropical marine atmosphere: Correlation between indoor simulations and outdoor exposures Materials & Design Tropical marine atmosphere Indoor simulation Outdoor exposure Grey correlation analysis Grey forecasting |
| title | Comparative analysis of hull steel corrosion in tropical marine atmosphere: Correlation between indoor simulations and outdoor exposures |
| title_full | Comparative analysis of hull steel corrosion in tropical marine atmosphere: Correlation between indoor simulations and outdoor exposures |
| title_fullStr | Comparative analysis of hull steel corrosion in tropical marine atmosphere: Correlation between indoor simulations and outdoor exposures |
| title_full_unstemmed | Comparative analysis of hull steel corrosion in tropical marine atmosphere: Correlation between indoor simulations and outdoor exposures |
| title_short | Comparative analysis of hull steel corrosion in tropical marine atmosphere: Correlation between indoor simulations and outdoor exposures |
| title_sort | comparative analysis of hull steel corrosion in tropical marine atmosphere correlation between indoor simulations and outdoor exposures |
| topic | Tropical marine atmosphere Indoor simulation Outdoor exposure Grey correlation analysis Grey forecasting |
| url | http://www.sciencedirect.com/science/article/pii/S026412752400950X |
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