Nondestructive Evaluation of Compound Weld Defect by Photoacoustic Microscopy
スポンサーリンク
概要
- 論文の詳細を見る
In this study, the nondestructive evaluation (NDE) of a compound defect in the weld metal of an aluminum plate has been demonstrated using a photoacoustic microscope (PAM). The compound defect is a blowhole, which was formed in the weld metal during welding. Experiments were carried out at different modulation frequencies to achieve depth profiling by changing the thermal diffusion length. Furthermore, X-ray tomographic imaging and scanning laser microscopy (SLM) were also used for comparison with the obtained PAM images. The PAM measurement, which is useful when only front-surface illumination is available, can achieve a spatial resolution comparable to those of X-ray micrography and SLM measurements for internal and surface defects, respectively.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2009-07-25
著者
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Endoh Haruo
Department Of Mechanical Engineering Tohoku Gakuin University
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Hoshimiya Tsutomu
Department of Applied Physics and Informatics, Tohoku Gakuin University, 13-1 Chuo-1, Tagajyo 985-8537, Japan
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Hoshimiya Tsutomu
Department of Electronic Engineering, Tohoku Gakuin University, Tagajyo, Miyagi 985-8537, Japan
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Shiraishi Daijiroh
Department of Mechanical Engineering and Intelligent Systems, Tohoku Gakuin University, Tagajyo, Miyagi 985-8537, Japan
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Endoh Haruo
Department of Mechanical Engineering and Intelligent Systems, Tohoku Gakuin University, Tagajyo, Miyagi 985-8537, Japan
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Endoh Haruo
Department of Mechanical Engineering and Intelligent Systems, Tohoku Gakuin University, Tagajo, Miyagi 985-8537, Japan
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