Evolution of microstructure and mechanical properties of VVER-1000 RPV steels under re-irradiation

被引：17

作者：

Gurovich, B. ^{[1
]}

Kuleshova, E. ^{[1
]}

Shtrombakh, Ya. ^{[1
]}

Fedotova, S. ^{[1
]}

Erak, D. ^{[1
]}

Zhurko, D. ^{[1
]}

机构：

[1] NRC Kurchatov Inst, Moscow 123182, Russia

来源：

JOURNAL OF NUCLEAR MATERIALS | 2015年 / 456卷

关键词：

RADIATION EMBRITTLEMENT; IRRADIATION; NANOSTRUCTURE; VVER-440;

D O I：

10.1016/j.jnucmat.2014.09.080

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This is a comprehensive study of microstructure and mechanical properties evolution at re-irradiation after recovery annealing of VVER-1000 RPV weld and base metals as well as the effect of annealing on the microstructure and properties of base metal in the zone of the temperature gradient that is implemented during annealing using special heating device. It is shown that the level of radiation-induced microstructural changes under accelerated re-irradiation of weld and base metal is not higher than for the primary irradiation. Thus, we can predict that re-embrittlement of VVER-1000 RPV materials considering the flux effect will not exceed the typical embrittlement rate for the primary irradiation. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：373 / 381

页数：9

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