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Glissile and Sessile Vacancy and Self-Interstitial Clusters in BCC and FCC Metals

Published online by Cambridge University Press:  15 February 2011

Yu.N. Osetsky ,
F. Gao  and
D.J. Bacon
Yu.N. Osetsky
Affiliation:
Materials Science and Engineering, Department of Engineering, The University of Liverpool, Liverpool L69 3BX, UK, osetsky@liverpool.ac.uk
F. Gao
Affiliation:
Materials Science and Engineering, Department of Engineering, The University of Liverpool, Liverpool L69 3BX, UK
D.J. Bacon
Affiliation:
Materials Science and Engineering, Department of Engineering, The University of Liverpool, Liverpool L69 3BX, UK
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Abstract

The production bias model of radiation damage has focused attention on the production of glissile clusters (GCs) in the displacement cascades. The formation of glissile SIA clusters in molecular dynamics simulations of cascades has been reported frequently whereas information about sessile clusters (SCs) is rather sparse. Comprehensive models of microstructure evolution in metals under irradiation conditions should include all possible defects (and clusters) and interactions between them. Detailed information of this nature can be obtained by means of atomic-scale computer simulation. In the present paper we review some recent results of atomistic simulation of sessile and glissile defect clusters in metals, dealing with their mechanisms of formation and their properties. In particular, we discuss the formation of SCs and GCs in the cascade region and also their creation in bulk metal as a result of cluster growth.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 540: Symposium N / Microstructural Processes in Irradiated Materials , 1998 , 691
Copyright
Copyright © Materials Research Society 1999

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