论文部分内容阅读
反应堆压力容器(RPV)是压水堆核电站寿期内不可更换的关键构件,其性能决定了反应堆服役寿命。在长期服役过程中,引起压力容器性能下降的最主要因素是长时间大剂量高能量中子的辐照。辐照将引起压力容器材料韧性降低,脆性升高,从而增加压力容器脆性断裂的潜在危险。因此,压力容器材料抗辐照脆化能力一直是该领域国内外关注的焦点之一。根据49-2泳池式反应堆的堆物理、结构等相关数据,设计了图1所示的辐照装置,主要结构
The reactor pressure vessel (RPV) is a key component that can not be replaced during the lifetime of a PWR nuclear power plant and its performance determines the service life of the reactor. In the course of long-term service, the most important factor that causes the pressure vessel performance to decline is the irradiation of large doses of high-energy neutrons for a long time. Irradiation will cause the pressure vessel material to reduce its toughness and increase the brittleness, thus increasing the potential danger of brittle fracture of the pressure vessel. Therefore, the ability of pressure vessel materials to resist radiation embrittlement has been one of the focuses in this field at home and abroad. According to 49-2 pool reactor pile physics, structure and other related data, designed the irradiation device shown in Figure 1, the main structure