Modeling of chromium nanocluster growth under neutron irradiation

被引：6
|
作者：
Svetukhin, V. [1 ]
L'vov, P. [1 ]
Tikhonchev, M. [1 ]
Gaganidze, E. [2 ]
Krestina, N. [1 ]
机构：
[1] Ulyanovsk State Univ, Res Inst Technol, Ulyanovsk, Russia
[2] Karlsruhe Inst Technol, Inst Appl Mat, D-76021 Karlsruhe, Germany
来源：
JOURNAL OF NUCLEAR MATERIALS | 2013年 / 442卷 / 1-3期
基金：
俄罗斯基础研究基金会;
关键词：
ALPHA-IRON; MICROSTRUCTURE; ALLOYS; SEPARATION; DIFFUSION; FE;
D O I：
10.1016/j.jnucmat.2013.03.030
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study simulated growth kinetics of Chromium (Cr)-rich nanoclusters in Iron (Fe)-Cr based alloys under irradiation. A radiation-enhanced diffusion model was used to investigate the peculiarities of cluster growth under irradiation. The calculation was based on kinetics methods of intermolecular reactions and on the analysis of near-equilibrium phase Fe-Cr alloy composition under irradiation. The dependence of the basic characteristics of Cr-rich clusters (clusters composition, average size, density) on damage dose (up to 10 dpa) were calculated at T = 573 K. The estimated diffusion coefficient of Cr atoms under irradiation was found to be D-Cr* - 1.4 x 10(-19)cm(2)/s, which is seven orders of magnitude higher than the corresponding thermal value. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：S624 / S627
页数：4
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