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.
Original language | English |
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Pages (from-to) | 283-290 |
Number of pages | 8 |
Journal | Computational Materials Science |
Volume | 23 |
Issue number | 1-4 |
DOIs | |
Publication status | Published - 1 Apr 2002 |
ASJC Scopus subject areas
- Materials Science(all)