Influence Factors of Nuclear Power Plant Reactor Pressure Vessel on Irradiation Embrittlement
WANG Rong-shan1,XU Chao-liang1,LIU Xiang-bing1,HUANG Ping1,CHEN Jun2,LI Cheng-liang2
1. Suzhou Nuclear Power Research Institute, Suzhou 215004, Jiangsu, China 2. China Nuclear Power Design Co., Ltd. Shenzhen, Shenzhen 518124, Guangzhou, China
Abstract：The performance degradation of nuclear power plant reactor pressure vessel (RPV) will happen after neutron irradiation in service conditions. Relevant researches show that factors of the material properties and work environment are associated with the irradiation embrittlement. The material properties are the RPV steel properties that associate with the irradiation embrittlement, including the chemical component, microstructure and grain size; and the work environment is the RPV service condition which connects with the embrittlement, containing the neutron fluence, neutron fluence rate, neutron energy spectrum and irradiation temperature.
2014, Vol. 25 
