Theoretical investigation of microstructure evolution and deformation of zirconium under neutron irradiation

被引：46
作者：
Barashev, A. V. [1 ,2 ]
Golubov, S. I. [1 ]
Stoller, R. E. [1 ]
机构：
[1] ORNL, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA
[2] Univ Tennessee, Dept Mat Sci & Engn, Ctr Mat Proc, Knoxville, TN 37996 USA
来源：
JOURNAL OF NUCLEAR MATERIALS | 2015年 / 461卷
关键词：
CASCADE-DAMAGE CONDITIONS; ALPHA-ZIRCONIUM; INTERSTITIAL CLUSTERS; GROWTH; ACCUMULATION; DIFFUSION; CRYSTAL; COPPER; BIAS;
D O I：
10.1016/j.jnucmat.2015.02.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The radiation growth of zirconium is studied using a reaction-diffusion model which takes into account intra-cascade clustering of self-interstitial atoms and one-dimensional diffusion of interstitial clusters. The observed dose dependence of strain rates is accounted for by accumulation of sessile dislocation loops during irradiation. The computational model developed and fitted to available experimental data is applied to study deformation of Zr single crystals under irradiation up to hundred dpa. The effect of cold work and the reasons for negative prismatic strains and co-existence of vacancy and interstitial loops are elucidated. (C) 2015 Elsevier B.V. All rights reserved.
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收藏
页码：85 / 94
页数：10
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