Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33940
Title: Segregated void swelling in a spatially heterogeneous material
Authors: Dudarev, SL
Semenov, AA
Woo, CH 
Issue Date: 2005
Source: Fusion engineering and design, 2005, v. 75-79, no. suppl., p. 1031-1035 How to cite?
Journal: Fusion Engineering and Design 
Abstract: We investigate the dynamics of void swelling in materials under irradiation in the presence of spatially heterogeneous dislocation microstructure. We find that, due to the sensitivity of the void nucleation rate to the local vacancy supersaturation, voids nucleate and grow almost exclusively in the regions where the density of dislocations is low. Numerical results show that the relatively high void growth rates observed experimentally in the regions of low dislocation density, leading to segregated evolution of dislocations and voids, can be naturally described by solutions of a reaction-diffusion model that takes continuous nucleation of voids into account but does not assume the occurrence of long-range one-dimensional transport of self-interstitial atoms through the material.
URI: http://hdl.handle.net/10397/33940
ISSN: 0920-3796
DOI: 10.1016/j.fusengdes.2005.06.237
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