加圧水型原子力発電プラントに対する保全（応力腐食割れ対策）
英字タイトル:
Maintenance Technologies for Degradation of Pressurized Water Reactor Power Plants
著者:
佐藤 知伸 Tomonobu SATO 岡部 武利 Taketoshi OKABE 沖村 浩司 Koji OKIMURA 豊田 真彦 Masahiko TOYODA 前口 貴治 Takaharu MAEGUCHI
発刊日:
公開日:
PWRPWSCCRVSGshot penningUSPwater jet penningWJP
Maintenance Technologies for Degradation of Pressurized Water Reactor Power Plants
著者:
佐藤 知伸 Tomonobu SATO 岡部 武利 Taketoshi OKABE 沖村 浩司 Koji OKIMURA 豊田 真彦 Masahiko TOYODA 前口 貴治 Takaharu MAEGUCHI
発刊日:
公開日:
カテゴリ: 第6回
キーワードタグ:PWRPWSCCRVSGshot penningUSPwater jet penningWJP
概要
As a countermeasure against SCC (stress corrosion cracking), MHI (Mitsubish i Heavy Industries, Ltd.) have developed some residual stress improvement m ethods, as Water Jet Peening (WJP) for components under water condition, a nd Shot Peening by Ultrasonic-wave vibration (USP) for components under air condition. The SCC occurred in high nickel based metal and welding material in pressurized water reactor (PWR) plants has become to be conspicuous iss ue in both Japan and abroad. In this paper, validity of stress improvement by WJP/USP for SCC mitigation has been verified for area with small cracks.
