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Proceedings Paper

Development of a pulse heating thermographic NDT technique for detection of latent blister in corrosion protective coating on oil storage tank
Author(s): Takahide Sakagami; Shiro Kubo; Kazuyoshi Sekine; Minoru Yamada; Katsuyasu Nakata; Hiroaki Maruyama
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Paper Abstract

Pulse heating thermographic NDT technique was developed for the detection of latent blisters in the corrosion protective coating on oil storage tanks employed for petroleum stockpiling in Japan. Experimental studies were made on the applicability of the proposed NDT method to the quantitative identification of the subsurface latent blisters in the coating. Pulse heat flux by the xenon flush lamp was applied to the surface of the corrosion protective coating and sequential thermal images were taken by the high-speed infrared thermography. It was found that the blisters were clearly identified as the localized high temperature region in the sequential thermal images.

Paper Details

Date Published: 23 March 2001
PDF: 6 pages
Proc. SPIE 4360, Thermosense XXIII, (23 March 2001); doi: 10.1117/12.421038
Show Author Affiliations
Takahide Sakagami, Osaka Univ. (Japan)
Shiro Kubo, Osaka Univ. (Japan)
Kazuyoshi Sekine, Yokohama National Univ. (Japan)
Minoru Yamada, National Research Institute of Fire and Disaster (Japan)
Katsuyasu Nakata, NOF Corp. (Japan)
Hiroaki Maruyama, Japan National Oil Corp. (Japan)


Published in SPIE Proceedings Vol. 4360:
Thermosense XXIII
Andres E. Rozlosnik; Ralph B. Dinwiddie, Editor(s)

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