Experimental study of inspection on SiC coated high-temperature alloy plates with defects using pulsed thermographic technique

Tang, Qingju; Liu, Junyan; Wang, Yang; Sun, Hongqi; Chen, Lingjiang

doi:10.1016/j.infrared.2012.11.007

Cited by 13 publications

(5 citation statements)

References 11 publications

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“…For the qualitative and quantitative detection of defects, there are many factors affecting the accuracy, and they can be grouped into the following categories: the influence of the infrared thermal imager system, heating mode, experimental technology, the influence of temperature data acquisition and processing [ 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 , 89 , 90 , 91 , 92 , 93 , 94 , 95 , 96 , 97 , 98 , 99 , 100 , 101 ]. The analysis of these factors can effectively improve the ability of defect detection, and it is also the key to achieve quantitative identification.…”

Section: Infrared Image-processing Technologymentioning

confidence: 99%

Development and Application of Infrared Thermography Non-Destructive Testing Techniques

Jiang

Zhang

2020

Sensors

105

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: Effective testing of defects in various materials is an important guarantee to ensure its safety performance. Compared with traditional non-destructive testing (NDT) methods, infrared thermography is a new NDT technique which has developed rapidly in recent years. Its core technologies include thermal excitation and infrared image processing. In this paper, several main infrared thermography nondestructive testing techniques are reviewed. Through the analysis and comparison of the detection principle, technical characteristics and data processing methods of these testing methods, the development of the infrared thermography nondestructive testing technique is presented. Moreover, the application and development trend are summarized.

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Section: Infrared Image-processing Technologymentioning

confidence: 99%

Development and Application of Infrared Thermography Non-Destructive Testing Techniques

Jiang

Zhang

2020

Sensors

105

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“…Pulsed phase thermography (PPT) is used to analyze the response of the thermal wave in the frequency domain by a Fourier transform [5,7,8].…”

Section: Principle Of Techniquementioning

confidence: 99%

“…The amplitude and phase angle images are formed for each pixel of thermal image sequences. Principal component analysis (PCA) as a transformation method can transform the temperature-time data into a series of basis vectors, and these basis vectors are not constant [5,9].…”

Section: Principle Of Techniquementioning

confidence: 99%

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Investigation on Coating Uniformity of High-Temperature Alloy with SiC Thermal Barrier Coating Using Pulsed Infrared Thermographic Technique

et al. 2015

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The SiC thermal barrier coating thickness uniformity of a high-temperature alloy was investigated using a pulsed infrared thermographic image. A thermal quadrupole method is used to solve a one-dimensional thermal conduction model. The temperature of the high-temperature alloy with SiC coating is directly affected by the pulse intensity of optical excitation; furthermore, the relation between the SiC thermal barrier coating thickness and temperature difference is obtained. Pulsed phase thermography and principal component analysis are applied to extract the characteristic information from thermal image sequences, and the signal-to-noise ratio of the thermal wave signal is clearly improved. The thermal contrast of the SiC thermal barrier coating thickness is related to the optical pulse intensity and infrared camera frame rate. Furthermore, a relatively simple quantitative method is developed to estimate the SiC thermal barrier coating thickness uniformity of the high-temperature alloy, and the coating thickness measurement using pulsed thermographic imaging is in very good agreement with the actual coating thickness value.

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“…At present, the infrared pulse thermal-wave imaging detection and infrared phase-locked thermal-wave imaging detection are the most mature infrared thermalwave detection technology and widely used. Infrared pulse thermal-wave imaging testing technology is the most researched and most mature infrared detection method, and is also the most widely used infrared detection technology [6] . It has been widely used in nondestructive testing and evaluation of small thickness specimens.…”

Section: Introductionmentioning

confidence: 99%

Research on the detection of delamination defect of CFRP using thermal-wave radar tomography (TWRT)

Wang¹,

Dong²,

Liu³

et al. 2020

Proceedings of the 2020 International Conference on Quantitative InfraRed Thermography

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Experimental study of inspection on SiC coated high-temperature alloy plates with defects using pulsed thermographic technique

Cited by 13 publications

References 11 publications

Development and Application of Infrared Thermography Non-Destructive Testing Techniques

Development and Application of Infrared Thermography Non-Destructive Testing Techniques

Investigation on Coating Uniformity of High-Temperature Alloy with SiC Thermal Barrier Coating Using Pulsed Infrared Thermographic Technique

Research on the detection of delamination defect of CFRP using thermal-wave radar tomography (TWRT)

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