Molecular dynamics simulation of displacement cascades in Fe-Cr alloys

被引：69
|
作者：
Malerba, L
Terentyev, D
Olsson, P
Chakarova, R
Wallenius, J
机构：
[1] CEN SCK, Reactor Mat Res Unit, B-2400 Mol, Belgium
[2] Uppsala Univ, Angstrom Lab, Dept Neutron Res, SE-75120 Uppsala, Sweden
[3] AlbaNova Univ Ctr, Royal Inst Technol, Dept Nucl & Reactor Phys, SE-10691 Stockholm, Sweden
来源：
JOURNAL OF NUCLEAR MATERIALS | 2004年 / 329卷
关键词：
D O I：
10.1016/j.jnucmat.2004.04.270
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An embedded atom method (EAM) empirical potential recently fitted and validated for Fe-Cr systems is used to simulate displacement cascades up to 15 keV in Fe and Fe-10%Cr. The evolution of these cascades up to thermalisation of the primary damage state is followed and quantitatively analysed. Particular attention is devoted to assessing the effect of Cr atoms on the defect distribution versus pure Fe. Using the Wigner-Seitz cell criterion to identify point defects, first results show that the main effect of the presence of Cr in the system is the preferential formation of mixed Fe-Cr dumbbells and mixed interstitial clusters, with expected lower mobility than in pure Fe. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：1156 / 1160
页数：5
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