STRESS CORROSION CRACKING INCIDENTS AND REPAIR TECHNOLOGIES ON PWR DISSIMILAR WELD METAL JOINTS IN JAPAN

摘要：

Several Japanese PWR power plants have experienced Primary Water Stress Corrosion Cracking (PWSCC) on dissimilar weld joints since 2004. J weld of 3 Reactor Vessel Head Penetration in Ohi unit 3 is one of the PWSCC incidents occurred in 2004 and has been studied by sampling and opening the fracture surface after its repair. Including Ohi unit 3 Reactor Vessel Head Penetration repair, Japanese PWR utilities and MHI have been developing the preventive maintenance and repair technologies applicable to alloy 600 welds and base metal, following PWSCC events on the Bugey-3 and V.C. Summer. This paper describes recent Japanese PWSCC incidents and repair technologies developed in Japan.

作者: NAOKI CHIGUSA SHINRO HIRANO TAKEHIKO SERA HITOSHI KAGUCHI MASAYUKI MUKAI YUSUKE YOSHIDA

作者单位: The Kansai Electric Power Co.,INC.Osaka, Japan Mitsubishi Heavy Industries, Ltd.Kobe, Japan

会议类型: 国际会议

会议名称: 18th International Conference on Nuclear Engineering(第18届国际核能工程大会 ICONE 18)

会议地点: 西安

会议语种:英文

页码: 1-10

在线出版日期: 2010-05-17（万方平台首次上网日期，不代表论文的发表时间）