Boiler piping of fossil-fuel combustion power generation plants are exposed to high-temperature and high-pressure environments, and failure of high-energy piping due to creep damage has been a concern. Therefore, a precise creep damage assessment method is needed. This paper proposes a nondestructive method for creep damage detection of piping in fossil-fuel combustion power generation plants by ultrasonic testing. Ultrasonic signals are transformed to signals in a frequency domain by Fourier transform, and a specific frequency band is chosen. To determine the creep damage, the spectrum intensities are calculated. Calculated intensities have a good correlation to life consumption of the weld joints, and this method is able to predict the remaining life of high-temperature piping, which has been already installed.
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e-mail: hiroaki̱[email protected]
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November 2007
Research Papers
Ultrasonic Creep Damage Detection by Frequency Analysis for Boiler Piping Available to Purchase
Hiroaki Hatanaka,
Hiroaki Hatanaka
Production Engineering Center,
e-mail: hiroaki̱[email protected]
IHI Corporation
, 1 Shin-Nakaharacho, Isogo-ku, Yokohama 235-8501, Japan
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Nobukazu Ido,
Nobukazu Ido
Production Engineering Center,
IHI Corporation
, 1 Shin-Nakaharacho, Isogo-ku, Yokohama 235-8501, Japan
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Takuya Ito,
Takuya Ito
Power Plant Division,
IHI Corporation
, 3-1-1 Toyosu, Koto-ku, Tokyo 135-8710, Japan
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Ryota Uemichi,
Ryota Uemichi
Power Plant Division,
IHI Corporation
, 5292 Aioi, Aioi-shi, Hyogo 678-0041, Japan
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Minoru Tagami,
Minoru Tagami
Production Engineering Center,
IHI Corporation
, 1 Shin-Nakaharacho, Isogo-ku, Yokohama 235-8501, Japan
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Hirokatsu Nakagawa
Hirokatsu Nakagawa
Power Plant Division,
IHI Corporation
, 3-1-1 Toyosu, Koto-ku, Tokyo 135-8710, Japan
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Hiroaki Hatanaka
Production Engineering Center,
IHI Corporation
, 1 Shin-Nakaharacho, Isogo-ku, Yokohama 235-8501, Japane-mail: hiroaki̱[email protected]
Nobukazu Ido
Production Engineering Center,
IHI Corporation
, 1 Shin-Nakaharacho, Isogo-ku, Yokohama 235-8501, Japan
Takuya Ito
Power Plant Division,
IHI Corporation
, 3-1-1 Toyosu, Koto-ku, Tokyo 135-8710, Japan
Ryota Uemichi
Power Plant Division,
IHI Corporation
, 5292 Aioi, Aioi-shi, Hyogo 678-0041, Japan
Minoru Tagami
Production Engineering Center,
IHI Corporation
, 1 Shin-Nakaharacho, Isogo-ku, Yokohama 235-8501, Japan
Hirokatsu Nakagawa
Power Plant Division,
IHI Corporation
, 3-1-1 Toyosu, Koto-ku, Tokyo 135-8710, JapanJ. Pressure Vessel Technol. Nov 2007, 129(4): 713-718 (6 pages)
Published Online: July 14, 2006
Article history
Received:
February 14, 2006
Revised:
July 14, 2006
Citation
Hatanaka, H., Ido, N., Ito, T., Uemichi, R., Tagami, M., and Nakagawa, H. (July 14, 2006). "Ultrasonic Creep Damage Detection by Frequency Analysis for Boiler Piping." ASME. J. Pressure Vessel Technol. November 2007; 129(4): 713–718. https://doi.org/10.1115/1.2767364
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