炉内構造物への予防保全技術の適用状況
英字タイトル:
Application status of the preventive technology for RPV Internals in BWRs
著者:
磯貝 智彦 Tomohiko ISOGAI 岡村 祐一 Yuichi OKAMURA 島 晃洋 Akihiro SHIMA
発刊日:
公開日:
Laser PeeningStress Corrosion CrackingStub tubeWater Jet Peening
Application status of the preventive technology for RPV Internals in BWRs
著者:
磯貝 智彦 Tomohiko ISOGAI 岡村 祐一 Yuichi OKAMURA 島 晃洋 Akihiro SHIMA
発刊日:
公開日:
カテゴリ: 第2回
キーワードタグ:Laser PeeningStress Corrosion CrackingStub tubeWater Jet Peening
概要
Recent years, Stress Corrosion Crackings (SCCs) are confirmed at the CRD stub tube and the RPV nozzle-welding join t in Japanese BWR plants. Several techniques to reduce the welding residual stress, which is considered to be a co mponent of SCC factor, such as a Peening are developed and applied to belt line of Core Shroud. At this article, t he overview of application results of Laser Peening (LP) and Water Jet Peening (WJP) to TEPCO's BWRs is discussed.
