CAJ | 학술논문

反应堆压力容器(RPV)材料辐照脆化预测评估对保证核反应堆安全运行、预防重大灾难性事故的发生具有重要意义.通过深入了解RPV材料辐照损伤机理和分析国外较为成熟的RPV辐照脆化预测模型,揭示了国外有关压力容器辐照脆化预测模型对低铜RPV辐照脆化预测的不足及其原因.在此基础上,发展和建立了适用于低铜RPV辐照脆化趋势的预测模型CIAE-2009.利用辐照性能数据对CIAE-2009模型进行了验证.结果表明,CIAE-2009对低铜含量RPV材料辐照脆化趋势预测具有较高的准确性和可靠性.
반응퇴압력용기(RPV)재료복조취화예측평고대보증핵반응퇴안전운행、예방중대재난성사고적발생구유중요의의.통과심입료해RPV재료복조손상궤리화분석국외교위성숙적RPV복조취화예측모형,게시료국외유관압력용기복조취화예측모형대저동RPV복조취화예측적불족급기원인.재차기출상,발전화건립료괄용우저동RPV복조취화추세적예측모형CIAE-2009.이용복조성능수거대CIAE-2009모형진행료험증.결과표명,CIAE-2009대저동함량RPV재료복조취화추세예측구유교고적준학성화가고성.
Accurate characterization of reductions in the fracture toughness of reactor pressure vessel (RPV) steels due to in-service neutron exposure is very important to the safe and reliable operation of nuclear power plants. The prediction model CIAE-2009 for irradiation embrittlement trend of low copper RPV steels was developed, and irradiation embrittlement data were used to verify the prediction model. The predicted fracture toughness trend indicates that the prediction model CIEA-2009 is correct and reliable.