Embrittlement of low copper VVER 440 surveillance samples neutron-irradiated to high fluences

被引：67
作者：
Miller, MK
Russell, KF
Kocik, J
Keilova, E
机构：
[1] Oak Ridge Natl Lab, Div Met & Ceram, Microscopy & Microanalyt Sci Grp, Oak Ridge, TN 37831 USA
[2] Nucl Res Inst Rez Plc, Prague 25068, Czech Republic
来源：
JOURNAL OF NUCLEAR MATERIALS | 2000年 / 282卷 / 01期
关键词：
D O I：
10.1016/S0022-3115(00)00240-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An atom probe tomography microstructural characterization of low copper (0.06 at.% Cu) surveillance samples from a VVER 440 reactor has revealed manganese and silicon segregation to dislocations and other ultrafine features in neutron-irradiated base and weld materials (fluences 1 x 10(25) m(-2) and 5 x 10(24) m(-2), E > 0.5 MeV, respectively). The results indicate that there is an additional mechanism of embrittlement during neutron irradiation that manifests itself at high fluences. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
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页码：83 / 88
页数：6
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