【摘 要】
：
反应堆压力容器(RPV)是压水堆中最重要的核心设备,也是核电站中不可更换的关键设备。其使用寿命决定了核电站的服役寿期,直接影响核电站的经济性和安全性。服役过程中,由于RP
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反应堆压力容器(RPV)是压水堆中最重要的核心设备,也是核电站中不可更换的关键设备。其使用寿命决定了核电站的服役寿期,直接影响核电站的经济性和安全性。服役过程中,由于RPV长期受到高温、高压和高能量中子辐照(E>1 Me V),其材料性能将不断降级,一旦应用应力高于断裂韧性时将发生脆性断裂,处于高温高压
Reactor pressure vessel (RPV) is the most important core equipment in PWR and the key non-replaceable equipment in nuclear power plant. Its service life determines the service life of the nuclear power station and directly affects the economy and safety of the nuclear power station. During service, due to long-term exposure to high temperature, high pressure and high energy neutron (E> 1 MeV), RPV material performance will continue to degrade. Once the applied stress is higher than the fracture toughness, brittle fracture will occur. Under high temperature and pressure
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