High-resolution in situ ultrasonic imaging platform for studying localized corrosion morphology
Localized corrosion poses significant threat to structural integrity. Understanding the kinetics of localized corrosion-induced material morphology changes is crucial to realizing effective corrosion prevention and control and safe structural design. However, the mainstream research tools in this ar...
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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/S2238785424026577 |
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| author | Yunda Chen Fangxin Zou Guozhe Meng Wei Zhang |
| author_facet | Yunda Chen Fangxin Zou Guozhe Meng Wei Zhang |
| author_sort | Yunda Chen |
| collection | DOAJ |
| description | Localized corrosion poses significant threat to structural integrity. Understanding the kinetics of localized corrosion-induced material morphology changes is crucial to realizing effective corrosion prevention and control and safe structural design. However, the mainstream research tools in this area suffer from various limitations, including inability to examine substrates that are covered by corrosion products (e.g., in situ confocal laser scanning microscopy and in situ optical microscopy) and susceptibility to non-Faradaic current-induced accuracy loss (e.g., wire beam electrode and scanning vibrating electrode technique). In this paper, we introduce an ultrasonic technique that can carry out real-time 3D imaging of localized corrosion-induced material morphology changes in a direct, non-intrusive, and corrosion product-immune manner, circumventing the limitations of the existing research tools. The dedicated experimental specimens for the technique are prepared by permanently installing, on a substrate, a large-scale piezoelectric transducer patch. During an experiment, different zones of the transducer patch are activated in a round-robin fashion to generate ultrasonic waves and acquire reflections. The instantaneous morphologies of the substrate are then reconstructed by processing, via tomography, the reflection signals acquired. A series of localized corrosion experiments were conducted to assess the performance of the technique. The results ascertained the accuracy of the technique, and revealed that the axial resolution of the technique can reach as high as 0.005% of the thickness of the substrate used, and that the lateral resolution of the technique can be enhanced by as simple as exciting ultrasonic waves more closely to each other. |
| format | Article |
| id | doaj-art-4834582f19bd4e0f8de2308d9975913f |
| 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-4834582f19bd4e0f8de2308d9975913f2024-12-26T08:55:39ZengElsevierJournal of Materials Research and Technology2238-78542024-11-013377407752High-resolution in situ ultrasonic imaging platform for studying localized corrosion morphologyYunda Chen0Fangxin Zou1Guozhe Meng2Wei Zhang3Department of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, ChinaDepartment of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China; Corresponding author.School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai, ChinaSchool of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai, ChinaLocalized corrosion poses significant threat to structural integrity. Understanding the kinetics of localized corrosion-induced material morphology changes is crucial to realizing effective corrosion prevention and control and safe structural design. However, the mainstream research tools in this area suffer from various limitations, including inability to examine substrates that are covered by corrosion products (e.g., in situ confocal laser scanning microscopy and in situ optical microscopy) and susceptibility to non-Faradaic current-induced accuracy loss (e.g., wire beam electrode and scanning vibrating electrode technique). In this paper, we introduce an ultrasonic technique that can carry out real-time 3D imaging of localized corrosion-induced material morphology changes in a direct, non-intrusive, and corrosion product-immune manner, circumventing the limitations of the existing research tools. The dedicated experimental specimens for the technique are prepared by permanently installing, on a substrate, a large-scale piezoelectric transducer patch. During an experiment, different zones of the transducer patch are activated in a round-robin fashion to generate ultrasonic waves and acquire reflections. The instantaneous morphologies of the substrate are then reconstructed by processing, via tomography, the reflection signals acquired. A series of localized corrosion experiments were conducted to assess the performance of the technique. The results ascertained the accuracy of the technique, and revealed that the axial resolution of the technique can reach as high as 0.005% of the thickness of the substrate used, and that the lateral resolution of the technique can be enhanced by as simple as exciting ultrasonic waves more closely to each other.http://www.sciencedirect.com/science/article/pii/S2238785424026577Localized corrosionMaterial morphology changeUltrasonic testingC-scanTomographyCorrosion monitoring |
| spellingShingle | Yunda Chen Fangxin Zou Guozhe Meng Wei Zhang High-resolution in situ ultrasonic imaging platform for studying localized corrosion morphology Journal of Materials Research and Technology Localized corrosion Material morphology change Ultrasonic testing C-scan Tomography Corrosion monitoring |
| title | High-resolution in situ ultrasonic imaging platform for studying localized corrosion morphology |
| title_full | High-resolution in situ ultrasonic imaging platform for studying localized corrosion morphology |
| title_fullStr | High-resolution in situ ultrasonic imaging platform for studying localized corrosion morphology |
| title_full_unstemmed | High-resolution in situ ultrasonic imaging platform for studying localized corrosion morphology |
| title_short | High-resolution in situ ultrasonic imaging platform for studying localized corrosion morphology |
| title_sort | high resolution in situ ultrasonic imaging platform for studying localized corrosion morphology |
| topic | Localized corrosion Material morphology change Ultrasonic testing C-scan Tomography Corrosion monitoring |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424026577 |
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