Nucleation of second-phase near elastic defects in crystalline solids

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Nucleation of second-phase near elastic defects in crystalline solids

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Publication Conference Paper, other
Title Nucleation of second-phase near elastic defects in crystalline solids
Author Bjerkén, Christina ; Massih, Ali
Date 2011
English abstract
The problem of heterogeneous nucleation of second-phase in alloys in the vicinity of elastic defects is considered. The defect can be a dislocation line or a crack tip residing in a crystalline solid. We use a compressible Ising-like model, represented by the Ginzburg-Landau equation, to describe the spatiotemporal evolution of the order parameter in the environs of the defect. The model accounts for the elasticity of the solid and the interaction of order parameter field with the elastic field of the defect. A finite volume numerical method is used to solve the governing partial differential equation for the order parameter. We examine the nature of the phase transition and discuss the phase diagram topology near and away from the defect. We discuss our calculations in light of observations of formation of hydrides in zirconium and titanium alloys.
Link http://arxiv.org/PS_cache/arxiv/pdf/1110/1110.1292v1.pdf (external link to publication)
Publisher TMS
Host/Issue Proceedings of MS&T'11;
Pages 13
Language eng (iso)
Subject Sciences
Research Subject Categories::NATURAL SCIENCES
Note Materials Science and Technology 2011 Conference & Exhibition ( MS&T’1... (see Details for more)
Handle http://hdl.handle.net/2043/12549 Permalink to this page
Link http://www.matscitech.org/ (external link to related web page)
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