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Hong Zhang
Key Laboratory of Nondestructive Testing Technology, Fujian Polytechnic Normal University, Fujian Province University, China

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Review article
Published: 29 June 2021 in Journal of Sensors
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The use of steel has grown rapidly over the past decades. However, corrosion under coating detection still presents challenges for nondestructive testing (NDT) techniques. One of such challenges is the lift-off introduced by complex structures. Inaccessibility due to structure leads corrosion to be undetected, which can lead to catastrophic failure. Furthermore, lift-off effects reduce the sensitivities. The limitations of existing NDT techniques heighten the need for novel approaches to the characterization of corrosion. This paper begins with a discussion of the challenges associated with corrosion detection of metal under coating. Secondly, reviews are given of the most NDT methods used for the detection of corrosion under coating. The different techniques based on nondestructive testing methods such as ultrasonic, acoustic, electromagnetic, radiographic, and thermographic have been detailed out. This review presents the significance and advantages provided by the emerging NDT techniques. In the end, the trends and identified problems are summarized.

ACS Style

Ruikun Wu; Hong Zhang; Ruizhen Yang; Wenhui Chen; Guotai Chen. Nondestructive Testing for Corrosion Evaluation of Metal under Coating. Journal of Sensors 2021, 2021, 1 -16.

AMA Style

Ruikun Wu, Hong Zhang, Ruizhen Yang, Wenhui Chen, Guotai Chen. Nondestructive Testing for Corrosion Evaluation of Metal under Coating. Journal of Sensors. 2021; 2021 ():1-16.

Chicago/Turabian Style

Ruikun Wu; Hong Zhang; Ruizhen Yang; Wenhui Chen; Guotai Chen. 2021. "Nondestructive Testing for Corrosion Evaluation of Metal under Coating." Journal of Sensors 2021, no. : 1-16.

Review
Published: 15 May 2017 in Sensors
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Microwave thermography (MWT) has many advantages including strong penetrability, selective heating, volumetric heating, significant energy savings, uniform heating, and good thermal efficiency. MWT has received growing interest due to its potential to overcome some of the limitations of microwave nondestructive testing (NDT) and thermal NDT. Moreover, during the last few decades MWT has attracted growing interest in materials assessment. In this paper, a comprehensive review of MWT techniques for materials evaluation is conducted based on a detailed literature survey. First, the basic principles of MWT are described. Different types of MWT, including microwave pulsed thermography, microwave step thermography, microwave pulsed phase thermography, and microwave lock-in thermography are defined and introduced. Then, MWT case studies are discussed. Next, comparisons with other thermography and NDT methods are conducted. Finally, the trends in MWT research are outlined, including new theoretical studies, simulations and modelling, signal processing algorithms, internal properties characterization, automatic separation and inspection systems. This work provides a summary of MWT, which can be utilized for material failures prevention and quality control.

ACS Style

Hong Zhang; Ruizhen Yang; Yunze He; Ali Foudazi; Liang Cheng; Guiyun Tian. A Review of Microwave Thermography Nondestructive Testing and Evaluation. Sensors 2017, 17, 1123 .

AMA Style

Hong Zhang, Ruizhen Yang, Yunze He, Ali Foudazi, Liang Cheng, Guiyun Tian. A Review of Microwave Thermography Nondestructive Testing and Evaluation. Sensors. 2017; 17 (5):1123.

Chicago/Turabian Style

Hong Zhang; Ruizhen Yang; Yunze He; Ali Foudazi; Liang Cheng; Guiyun Tian. 2017. "A Review of Microwave Thermography Nondestructive Testing and Evaluation." Sensors 17, no. 5: 1123.

Journal article
Published: 01 January 2017 in International Journal of Thermal Sciences
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ACS Style

Yunze He; Ruizhen Yang; Hong Zhang; Deqiang Zhou; Gang Wang. Volume or inside heating thermography using electromagnetic excitation for advanced composite materials. International Journal of Thermal Sciences 2017, 111, 41 -49.

AMA Style

Yunze He, Ruizhen Yang, Hong Zhang, Deqiang Zhou, Gang Wang. Volume or inside heating thermography using electromagnetic excitation for advanced composite materials. International Journal of Thermal Sciences. 2017; 111 ():41-49.

Chicago/Turabian Style

Yunze He; Ruizhen Yang; Hong Zhang; Deqiang Zhou; Gang Wang. 2017. "Volume or inside heating thermography using electromagnetic excitation for advanced composite materials." International Journal of Thermal Sciences 111, no. : 41-49.

Journal article
Published: 01 October 2016 in Measurement
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High frequency RFID sensors are attractive in diverse applications where sensor performance is required at a low cost and dimension restriction. An approach adapting commercial passive 13.56MHz RFID tags has been developed for sensing corrosion stage. This investigation includes balance of sensing and positioning of RFID sensors for corrosion detection by analysing real and imaginary parts of the complex impedance. With passive HF RFID sensors, real part and imaginary part of complex impedance have been extracted from the reader coil with VNA (vector network analyser) and delivering a unique capability for corrosion sensing with different atmospheric exposure time steel samples (1 month, 6 months, 10 months and 12 months). With different positioning (5mm to 25mm), features extraction based on the complex impedance with PCA (principal component analysis) has been designed for position-independent corrosion evaluation.

ACS Style

Hong Zhang; Ruizhen Yang; Yunze He; Gui Yun Tian; Luxiong Xu; Ruikun Wu. Identification and characterisation of steel corrosion using passive high frequency RFID sensors. Measurement 2016, 92, 421 -427.

AMA Style

Hong Zhang, Ruizhen Yang, Yunze He, Gui Yun Tian, Luxiong Xu, Ruikun Wu. Identification and characterisation of steel corrosion using passive high frequency RFID sensors. Measurement. 2016; 92 ():421-427.

Chicago/Turabian Style

Hong Zhang; Ruizhen Yang; Yunze He; Gui Yun Tian; Luxiong Xu; Ruikun Wu. 2016. "Identification and characterisation of steel corrosion using passive high frequency RFID sensors." Measurement 92, no. : 421-427.

Journal article
Published: 01 July 2016 in Renewable and Sustainable Energy Reviews
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Wind energy is one of the fastest growing renewable energy resources. It is distinctly important to increase reliability and availability of wind turbines and further to reduce the wind energy cost. Blades are considered to be one of the most critical components in wind turbine system because they convert Kinetic energy of wind into useable power. Blades are fabricated by carbon fiber reinforced polymer (CFRP) or glass fiber reinforced polymer (GFRP). Flaws and damages are inevitable during either fabrication or lifetime of a composite blade. Thus, non-destructive testing (NDT) and structural health monitoring (SHM) for wind turbine blade (WTB) are required to prevent failures and increase reliability in both manufacturing quality control and in-service inspection. In this work, a fully, in-depth and comprehensive review of NDT techniques for WTB inspection was reported based on an orderly and concise literature survey. Firstly, typical flaw and damage occurring in manufacturing progress and in service of WTB were introduced. Next, the developments of visual, sonic and ultrasonic, optical, electromagnetic, thermal and radiographic NDT for composite WTB inspection were reviewed. Thereafter, strengths and limitations of NDT techniques were concluded through comparison studies. In the end, some research trends in WTB NDT have been predicted, for example in combination with SHM. This work will provide a guide for NDT and SHM of WTB, which plays an important role in wind turbine safety control and wind energy cost savings. In addition, this work can benefit the NDT development in the field of renewable energy, such as solar energy, and energy conservation field, such as building diagnosis.

ACS Style

Ruizhen Yang; Yunze He; Hong Zhang. Progress and trends in nondestructive testing and evaluation for wind turbine composite blade. Renewable and Sustainable Energy Reviews 2016, 60, 1225 -1250.

AMA Style

Ruizhen Yang, Yunze He, Hong Zhang. Progress and trends in nondestructive testing and evaluation for wind turbine composite blade. Renewable and Sustainable Energy Reviews. 2016; 60 ():1225-1250.

Chicago/Turabian Style

Ruizhen Yang; Yunze He; Hong Zhang. 2016. "Progress and trends in nondestructive testing and evaluation for wind turbine composite blade." Renewable and Sustainable Energy Reviews 60, no. : 1225-1250.

Journal article
Published: 01 May 2016 in IEEE Sensors Journal
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ACS Style

Hong Zhang; Yunze He; Bin Gao; Gui Yun Tian; Luxiong Xu; Ruikun Wu. Evaluation of Atmospheric Corrosion on Coated Steel Using -Band Sweep Frequency Microwave Imaging. IEEE Sensors Journal 2016, 16, 3025 -3033.

AMA Style

Hong Zhang, Yunze He, Bin Gao, Gui Yun Tian, Luxiong Xu, Ruikun Wu. Evaluation of Atmospheric Corrosion on Coated Steel Using -Band Sweep Frequency Microwave Imaging. IEEE Sensors Journal. 2016; 16 (9):3025-3033.

Chicago/Turabian Style

Hong Zhang; Yunze He; Bin Gao; Gui Yun Tian; Luxiong Xu; Ruikun Wu. 2016. "Evaluation of Atmospheric Corrosion on Coated Steel Using -Band Sweep Frequency Microwave Imaging." IEEE Sensors Journal 16, no. 9: 3025-3033.