Non-Destructive Evaluation of Coating Thickness Using Water Immersion Ultrasonic Testing

The coating is applied to prevent corrosion on the surface of ships or marine structures, and the thickness of the coating affects its anti-corrosion effect. As a result, non-destructive testing (NDT) is required to measure coating thickness, and ultrasonic NDT is a convenient and quick way to measu...

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Autores principales:	Jiannan Zhang, Younho Cho, Jeongnam Kim, Azamatjon Kakhramon ugli Malikov, Young H. Kim, Jin-Hak Yi, Weibin Li
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	non-destructive testing (NDT) ultrasonic pulse-echo ultrasonic immersion measurement Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/5b8e457975c944e9a7ae66d2f33cd29a
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id	oai:doaj.org-article:5b8e457975c944e9a7ae66d2f33cd29a
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spelling	oai:doaj.org-article:5b8e457975c944e9a7ae66d2f33cd29a2021-11-25T17:17:03ZNon-Destructive Evaluation of Coating Thickness Using Water Immersion Ultrasonic Testing10.3390/coatings111114212079-6412https://doaj.org/article/5b8e457975c944e9a7ae66d2f33cd29a2021-11-01T00:00:00Zhttps://www.mdpi.com/2079-6412/11/11/1421https://doaj.org/toc/2079-6412The coating is applied to prevent corrosion on the surface of ships or marine structures, and the thickness of the coating affects its anti-corrosion effect. As a result, non-destructive testing (NDT) is required to measure coating thickness, and ultrasonic NDT is a convenient and quick way to measure the thickness of underwater coatings. However, the offshore coating’s energy attenuation and absorption rates are high, the ultrasonic pulse echo test is difficult, and the testing environment is harsh. Because of the coating’s high attenuation, the distance of the optimal water delay line designed based on the reflection coefficient of the vertically incident wave is used. To accurately measure the thickness of the coating material, TOF of the reflected echo on the time-domain waveform was evaluated. The experimental results show that, when compared to caliper measurements, the coating thickness measured by the proposed method has a lower error and can be used for accurate measurement. The use of ultrasonic water immersion measurement is almost limitless in terms of size, location, and material of the object to be measured, and it is expected to be used to measure the thickness of the surface coating of ships or marine structures in the water.Jiannan ZhangYounho ChoJeongnam KimAzamatjon Kakhramon ugli MalikovYoung H. KimJin-Hak YiWeibin LiMDPI AGarticlenon-destructive testing (NDT)ultrasonic pulse-echoultrasonic immersion measurementEngineering (General). Civil engineering (General)TA1-2040ENCoatings, Vol 11, Iss 1421, p 1421 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	non-destructive testing (NDT) ultrasonic pulse-echo ultrasonic immersion measurement Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	non-destructive testing (NDT) ultrasonic pulse-echo ultrasonic immersion measurement Engineering (General). Civil engineering (General) TA1-2040 Jiannan Zhang Younho Cho Jeongnam Kim Azamatjon Kakhramon ugli Malikov Young H. Kim Jin-Hak Yi Weibin Li Non-Destructive Evaluation of Coating Thickness Using Water Immersion Ultrasonic Testing
description	The coating is applied to prevent corrosion on the surface of ships or marine structures, and the thickness of the coating affects its anti-corrosion effect. As a result, non-destructive testing (NDT) is required to measure coating thickness, and ultrasonic NDT is a convenient and quick way to measure the thickness of underwater coatings. However, the offshore coating’s energy attenuation and absorption rates are high, the ultrasonic pulse echo test is difficult, and the testing environment is harsh. Because of the coating’s high attenuation, the distance of the optimal water delay line designed based on the reflection coefficient of the vertically incident wave is used. To accurately measure the thickness of the coating material, TOF of the reflected echo on the time-domain waveform was evaluated. The experimental results show that, when compared to caliper measurements, the coating thickness measured by the proposed method has a lower error and can be used for accurate measurement. The use of ultrasonic water immersion measurement is almost limitless in terms of size, location, and material of the object to be measured, and it is expected to be used to measure the thickness of the surface coating of ships or marine structures in the water.
format	article
author	Jiannan Zhang Younho Cho Jeongnam Kim Azamatjon Kakhramon ugli Malikov Young H. Kim Jin-Hak Yi Weibin Li
author_facet	Jiannan Zhang Younho Cho Jeongnam Kim Azamatjon Kakhramon ugli Malikov Young H. Kim Jin-Hak Yi Weibin Li
author_sort	Jiannan Zhang
title	Non-Destructive Evaluation of Coating Thickness Using Water Immersion Ultrasonic Testing
title_short	Non-Destructive Evaluation of Coating Thickness Using Water Immersion Ultrasonic Testing
title_full	Non-Destructive Evaluation of Coating Thickness Using Water Immersion Ultrasonic Testing
title_fullStr	Non-Destructive Evaluation of Coating Thickness Using Water Immersion Ultrasonic Testing
title_full_unstemmed	Non-Destructive Evaluation of Coating Thickness Using Water Immersion Ultrasonic Testing
title_sort	non-destructive evaluation of coating thickness using water immersion ultrasonic testing
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/5b8e457975c944e9a7ae66d2f33cd29a
work_keys_str_mv	AT jiannanzhang nondestructiveevaluationofcoatingthicknessusingwaterimmersionultrasonictesting AT younhocho nondestructiveevaluationofcoatingthicknessusingwaterimmersionultrasonictesting AT jeongnamkim nondestructiveevaluationofcoatingthicknessusingwaterimmersionultrasonictesting AT azamatjonkakhramonuglimalikov nondestructiveevaluationofcoatingthicknessusingwaterimmersionultrasonictesting AT younghkim nondestructiveevaluationofcoatingthicknessusingwaterimmersionultrasonictesting AT jinhakyi nondestructiveevaluationofcoatingthicknessusingwaterimmersionultrasonictesting AT weibinli nondestructiveevaluationofcoatingthicknessusingwaterimmersionultrasonictesting
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Non-Destructive Evaluation of Coating Thickness Using Water Immersion Ultrasonic Testing

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