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NDT Analysis of Metal Materials with Internal Defects Using Active Infrared Thermography Method

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Abstract:

This study is aimed to analyze the thermal imaging patterns presented by infrared(IR) thermography at which the metal with internal defects are thermally heated. Through the knowledge of non-destructive testing which infrared thermography can be applied to detect the defects inside the materials, there are two materials experimented; one is stainless steel and the other is cast-iron. Thermally, each material of specimens is heated at the base of the material and kept with constant temperature, The artificial defects in the specimen are formulated. Under the shape and location of the defects, temperature profiles are also measured and validated using the computer simulation. It is concluded that the characteristics of thermal patterns obtained from IR thermography are consistent with those of measurement and computations.

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Periodical:

Key Engineering Materials (Volumes 321-323)

Pages:

835-840

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.321-323.835

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Online since:

October 2006

Authors:

Won Tae Kim, Man Yong Choi, Jung Hak Park

Keywords:

Computer Simulation, Infrared Thermography (IRT), Internal Defect, Nondestructive Testing (NDT), Temperature Profile, Thermal Imaging

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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References

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