Author/Authors :
Kuleshova، نويسنده , , E.A. and Gurovich، نويسنده , , B.A. and Shtrombakh، نويسنده , , Ya.I. and Erak، نويسنده , , D.Yu. and Lavrenchuk، نويسنده , , O.V.، نويسنده ,
Abstract :
Comparative microstructural studies of both surveillance specimens and reactor pressure vessel (RPV) materials of VVER-440 and VVER-1000 light water reactor systems have been carried out, following irradiation to different fast neutron fluences and of the heat treatment for extended periods at the operating temperatures. It is shown that there are several microstructural features in the radiation embrittlement of VVER-1000 steels compared to VVER-440 RPV steels that can cause changes in the contributions of different radiation embrittlement mechanisms for VVER-1000 steel.
