Abstract
Experimental study was carried out to clarify the performance of eddy current testing probes and a probe inserting equipment for the inservice inspection of the intermediate heat exchanger tubes of the high-temperature engineering test reactor. The inspection performance of the probes were investigated using test tubes, made of Hastelloy XR and containing artificial discontinuities made with reference to the ASME standards of steam generator tubes in a light-water reactor. It was confirmed that the probe could detect the discontinuities of the ASME standards and the smaller ones, such as a 100% through-wall hole with 0.5-mm diameter and a groove with 0.5-mm width, in the base metal tube. For the tube support and the welded joint, the multi-frequency method could remove the noise. The inspection performance, however, lowered. The probe inserting equipment was manufactured by way of trial. It could be settled stably in the hot header of a mock-up model, and could smoothly insert and extract the probe. The winding of a cable cause the scattering of the probe traveling velocity and the measurement error of the probe location in the tube. (author).
Inagaki, Yoshiyuki;
Miyamoto, Yoshiaki;
[1]
Kato, Kiyoshi;
Nakajima, Tamao;
Kozuma, Tsuyoshi;
Shoji, Hajime
- Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment
Citation Formats
Inagaki, Yoshiyuki, Miyamoto, Yoshiaki, Kato, Kiyoshi, Nakajima, Tamao, Kozuma, Tsuyoshi, and Shoji, Hajime.
Performance test of inservice inspection equipment for HTTR intermediate heat exchanger tubes.
Japan: N. p.,
1992.
Web.
Inagaki, Yoshiyuki, Miyamoto, Yoshiaki, Kato, Kiyoshi, Nakajima, Tamao, Kozuma, Tsuyoshi, & Shoji, Hajime.
Performance test of inservice inspection equipment for HTTR intermediate heat exchanger tubes.
Japan.
Inagaki, Yoshiyuki, Miyamoto, Yoshiaki, Kato, Kiyoshi, Nakajima, Tamao, Kozuma, Tsuyoshi, and Shoji, Hajime.
1992.
"Performance test of inservice inspection equipment for HTTR intermediate heat exchanger tubes."
Japan.
@misc{etde_10130351,
title = {Performance test of inservice inspection equipment for HTTR intermediate heat exchanger tubes}
author = {Inagaki, Yoshiyuki, Miyamoto, Yoshiaki, Kato, Kiyoshi, Nakajima, Tamao, Kozuma, Tsuyoshi, and Shoji, Hajime}
abstractNote = {Experimental study was carried out to clarify the performance of eddy current testing probes and a probe inserting equipment for the inservice inspection of the intermediate heat exchanger tubes of the high-temperature engineering test reactor. The inspection performance of the probes were investigated using test tubes, made of Hastelloy XR and containing artificial discontinuities made with reference to the ASME standards of steam generator tubes in a light-water reactor. It was confirmed that the probe could detect the discontinuities of the ASME standards and the smaller ones, such as a 100% through-wall hole with 0.5-mm diameter and a groove with 0.5-mm width, in the base metal tube. For the tube support and the welded joint, the multi-frequency method could remove the noise. The inspection performance, however, lowered. The probe inserting equipment was manufactured by way of trial. It could be settled stably in the hot header of a mock-up model, and could smoothly insert and extract the probe. The winding of a cable cause the scattering of the probe traveling velocity and the measurement error of the probe location in the tube. (author).}
place = {Japan}
year = {1992}
month = {Oct}
}
title = {Performance test of inservice inspection equipment for HTTR intermediate heat exchanger tubes}
author = {Inagaki, Yoshiyuki, Miyamoto, Yoshiaki, Kato, Kiyoshi, Nakajima, Tamao, Kozuma, Tsuyoshi, and Shoji, Hajime}
abstractNote = {Experimental study was carried out to clarify the performance of eddy current testing probes and a probe inserting equipment for the inservice inspection of the intermediate heat exchanger tubes of the high-temperature engineering test reactor. The inspection performance of the probes were investigated using test tubes, made of Hastelloy XR and containing artificial discontinuities made with reference to the ASME standards of steam generator tubes in a light-water reactor. It was confirmed that the probe could detect the discontinuities of the ASME standards and the smaller ones, such as a 100% through-wall hole with 0.5-mm diameter and a groove with 0.5-mm width, in the base metal tube. For the tube support and the welded joint, the multi-frequency method could remove the noise. The inspection performance, however, lowered. The probe inserting equipment was manufactured by way of trial. It could be settled stably in the hot header of a mock-up model, and could smoothly insert and extract the probe. The winding of a cable cause the scattering of the probe traveling velocity and the measurement error of the probe location in the tube. (author).}
place = {Japan}
year = {1992}
month = {Oct}
}