PWR容器の異種金属溶接部ECT検査手法の開発


英字タイトル:
Development of Eddy Current Testing Method for PWR Vessel’s Dissimilar Metal Weld
著者:
浅田 義浩 Yoshihiro ASADA 徳久 貴一 Kiichi TOKUHISA 高次 正弥 Masaya TAKATSUGU 黒川 政秋 Masaaki KUROKAWA 川田 かよ子 Kayoko KAWATA 平野 伸朗 Shinro HIRANO 瀬良 健彦 Takehiko SERA
発刊日:
公開日:
カテゴリ: 論文
キーワードタグ:

概要

Eddy Current testing (ECT) for detecting stress corrosion cracks (SCCs) in the vessel's dissimilar metal weld of PWR plants was carried out. Appropriate ECT with a single cross-coil can detect shallow artificial SCCs with depth of 0.5mm or over. And magnetic saturation method is very effective for decreasing noise signals come from permeability change in the boundary region between overlay and buttering of safe-end.


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