Investigation on the Dependence of RPV Steel Embrittlement on Irradiation Temperature and Neutron Exposure

摘要

Three stell heats with copper contents of 0.04, 0.15 and 0.25% respectively have been irradiated at 255 exp 0 C, 285 exp 0 C and 310 exp 0 C to 1.7 x 10 exp 19 cm exp -2 (E>1MeV). A dependence of the ductile-to-brittle transition temperature shift delta TT on the irradiation temperature Tsub(B) was found. The slope of the delta TT vs Tsub(B) curves increases strongly with copper content. (ERA citation 08:044138)