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Prediction of residual life of reactor steels to ensure safe operation of nuclear power plant reactor vessels

机译:反应堆钢材剩余寿命预测,以确保核电厂电抗血管安全运行

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Nuclear power plants are important generating units of the energy system worldwide. In the normal mode, nuclear power plants are absolutely safe, but emergency systems with radiation emissions have a devastating impact on the environment and public health. Despite the introduction of technologies and automatic monitoring systems, the threat of a potentially dangerous situation remains. The reactor vessel is the main object of activities to ensure the safety of nuclear power plants. One of the problems of ensuring the safety of nuclear power plant reactor vessels is the prediction of the level of crack resistance of reactor steels. The paper shows the possibility of estimating the neutron irradiation level on the nature of the temperature dependence of K_(IC). The prediction of the influence of radiation damage on the fracture toughness of the reactor steel can be obtained on the basis of the results of tests of small cylindrical samples with annular notches.
机译:核电站是全球能源系统的重要组织。在正常模式下,核电厂是绝对安全的,但辐射排放的紧急系统对环境和公共卫生产生了破坏性影响。尽管推出了技术和自动监测系统,但仍存在潜在危险情况的威胁。反应堆船是保证核电厂安全的活动的主要目标。确保核电厂反应堆容器安全的问题之一是预测反应器钢的抗裂性水平。本文显示了估计中子辐射水平对K_(IC)的温度依赖性的性质的可能性。可以基于具有环形凹口的小圆柱样品的测试结果获得辐射损伤对反应器钢断裂韧性的影响。

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