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概要

In recent years, the formulation of reasonable methodologies to manage and evaluate the safety and integrity of aging nuclear power facilities is the matter of importance for Japanese power utilities to secure stable power supply i n the next few decades. Among possible concerns about aging problems, stress corrosion cracking (SCC) is the one of critical problems to ensure the integrity of boiling water reactors (BWR) and extensive R&D activities are being co nducted.The seismic reliability of nuclear power plants is also attracting increasing attention after Kashiwazaki-Kariwa nuclear power station suffered from Niigataken-Chuetsuoki earthquake in July 2007. Intensive seismic evaluation s and reinforcements have been being conducted from then on.This paper will provide an introductory review on research activities on SCC mechanism and seismic reliability of BWRs that are conducted in academic-industry partnership.

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