配管減肉保全管理の高度化に向けた研究調査活動

（5. 減肉管理に関する国外動向）

抄録

In domestic nuclear and fossil power plants, pipe wall thinning is managed based on residual lifetime evaluation calculated from wall thickness measurement results. While in other countries, referring to the basic studies on flow-accelerated corrosion (FAC) conducted from the 1970's, prediction method of FAC rate was introduced into the management from around 1990's which resulted in optimization of pipe inspection, repair and replacement. In JSME, research committee for improvements of pipe wall thinning management has been established since 2008 and now is in its fourth phase. For the future introduction of prediction method into the management in domestic power plants, the following items were surveyed and presented as references; management with predicted software in foreign countries, information from International Conference on FAC, and related activities in the IAEA FAC coordinated research project (CRP).