Fracture in ferritic reactor steel--dynamic stain aging and cyclic loading

Abstract

The extensive database on various reactor vessel surveillance capsule programs revealed the influence of alloying elements such as copper, nickel, and phosphorus on the changes in DBTT and upper-shelf energy along with the superimposed effects of radiation fluence and irradiation temperature.2,3 The effects of alloying and impurity elements such as copper, nickel, and phosphorus have been well characterized, resulting in modern vessel materials and welding techniques with reduced amounts of these trace elements....