China Institute of Atomic Energy, Beijing 102413, China
Keywords:
-
CLC:
PACS:
-
DOI:
-
DocumentCode:
Abstract:
Pressure vessel is the critical and unchangeable component of the PWR during its service lifetime, which determines the lifetime of nuclear power plant. The property decline of pressure vessel is mainly caused by large dose and high energy neutron irradiation during the long term service. Irradiation can reduce the toughness and increase the brittleness of the pressure vessel materials, thus raising the potential risk of brittle fracture. So irradiation embrittlement resistance of pressure