A method for directly measuring fracture toughness and determining reference temperature for RPV steels by Charpy impact test

Chenglong Wang,Zhenfeng Tong,Weihua Zhong,Hu Lin,Guangsheng Ning,Changyi Zhang,Bintao Yu, Shuai Xu,Wen Yang

Engineering Fracture Mechanics（2021）

Cited 8|Views11

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Abstract

•The KIC and T0 of the RPV material were calculated using impact specimens.•KIC was obtained form impact specimen’s fracture, F-t curve, size, shape factor.•T0 was obtained by the multi-temperature formula applicable to the impact test.•KIC, T0 are consistent with results obtained by CTt according to the ASTM standard.

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Key words

Reactor pressure vessel,Charpy impact test,Fracture toughness,Reference temperature,Cleavage fracture,Impact fracture,Load-time curve,Multi-temperature procedure,Master curve method

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