Abstract
Fatigue lives of carbon and low-alloy steels in LWR water environment decrease with decreasing strain rate, and increasing temperature and dissolved oxygen content. The fatigue life correction factor, F_<en'> has been proposed as a method to assess the fatigue life reduction in such environments. This paper describes a revised model for calculating F_<en>. In this revised model, sulfur content and water flow rate are considered for calculating F_<en>. It is found that this revised model shows better correlation with test data than the previous models. The research was carried out by the Japan Power Engineering and Inspection Corporation (JAPEIC) which was entrusted by the Ministry of Economy, Trade and Industry (METI).
