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 s...
英字タイトル:
Maintenance Technologies for Degradation of Pressurized Water Reactor Power Plants