Guidelines for Prediction of Irradiation Embrittlement of Operating WWER-440 Reactor Pressure Vessels

IAEA TECDOC No. 1442

Subject Classification: 0702-Nuclear power operations

English IAEA-TECDOC-1442; (ISBN:92-0-105605-2); 72 pp.; € 15.00; Date Published: 2005

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The IAEA International Database on RPV Materials (IDRPVM) is used for prediction and analysis of radiation embrittlement of WWER-440 reactor pressure vessel (RPV) materials. These guidelines will be used for assessment of irradiation embrittlement of RPV ferritic materials as a result of degradation during operation. Two approaches, i.e. transition temperatures based on Charpy impact notch toughness as well as those based on static fracture toughness tests, are used to develop the prediction formulas for radiation embrittlement of RPVs of WWER-440 nuclear power plants.

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