Journal of the Korean Society for Nondestructive Testing (비파괴검사학회지)

The Korean Society for Nondestructive Testing (한국비파괴검사학회)
권호 표지

Experience in Ultrasonic Flaw Estimation and its Excavation on the Weldments of Nuclear Pressure Vessels

원전 압력용기 용접부 초음파탐상, 결함크기 평가 및 결함 수리 경험

  • 이종포 (한국원자력연구소 비파괴시험 연구실) ;
  • 박대영 (한국원자력연구소 비파괴시험 연구실) ;
  • 임형택 (한국원자력연구소 비파괴시험 연구실) ;
  • 김병철 (한국원자력연구소 비파괴시험 연구실) ;
  • 주영상 (한국원자력연구소 비파괴시험 연구실)
  • Published : 1991.05.24
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Abstract

The importance and role of preservice and inservice inspection(PSI/ISI) for nuclear power plant components are intimately related to plant design, safety, reliability and operation etc.. The Korea Atomic Energy Research Institute(KAERI) has been performing PSI/ISI in Korea since the PSI of Kori nuclear power plant, unit 1 had been performed in 1977. KAERI has localized PSI/ISI technology and has done much experience in ultrasonic flaw detection, evaluation and its excavation on the weldments of large pressure vessels. The results of flaw estimation using ultrasonic examination are compared with the actual flaw sizes revealed by field excavation. KAERI's experience regarding PSI/ISI was described and some discussions were added.

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