Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/43038
Title: Effect of applied load on nucleation and growth of γ-hydrides in zirconium
Authors: Ma, XQ
Shi, SQ 
Woo, CH
Chen, LQ
Issue Date: 2002
Publisher: Elsevier
Source: Computational materials science, 2002, v. 23, no. 1-4, p. 283-290 How to cite?
Journal: Computational materials science 
Abstract: γ-hydride precipitation and growth in zirconium were investigated by using a phase-field kinetic model. The orientation difference of hydride is represented by non-conservative structural field variables, whereas the concentration difference of hydrogen in precipitates and matrix is described by a conserved field variable. The temporal evolution of the spatially dependent field variables is determined by numerically solving the time-dependent Ginzburg–Landau equations for the structural variables and the Cahn–Hilliard diffusion equation for the concentration variable. It is demonstrated that a certain load level is required to completely re-orient hydride precipitates and it is most effective to apply loads during the initial nucleation stage for producing anisotropic precipitate alignment.
URI: http://hdl.handle.net/10397/43038
ISSN: 0927-0256
DOI: 10.1016/S0927-0256(01)00226-9
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