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Title: Heterogeneous void swelling near grain boundaries in irradiated materials
Authors: Dudarev, S. L.
Semenov, A. A.
Woo, Chung-ho
Subjects: Irradiation
Molecular dynamics
Radiation dose
Issue Date: 1-Mar-2003
Publisher: American Physical Society
Source: Physical review B, condensed matter and materials physics, 1 Mar. 2003, v. 67, no. 9, 094103, p. 1-9.
Abstract: We found that by assuming that the density of dislocations in an irradiated material varies as a function of the distance to grain boundaries and that mobile interstitial defect clusters perform three-dimensional diffusional motion it is possible to achieve significantly better agreement with experimental observations of profiles of heterogeneous void swelling than in the model where defects diffuse purely one-dimensionally. This approach explains the origin of several distinct features characterising the effect of heterogeneous void swelling, including the variation of the shape of swelling profiles as a function of irradiation dose, the formation of peaks of swelling and void denuded zones, and the occurrence of anomalously large voids in the regions adjacent to grain boundaries.
Rights: Physical Review B © 2003 The American Physical Society. The Journal's web site is located at
Type: Journal/Magazine Article
DOI: 10.1103/PhysRevB.67.094103
ISSN: 1098-0121 (print)
1550-235X (online)
Appears in Collections:ME Journal/Magazine Articles

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