Effect of applied load on nucleation and growth of γ-hydrides in zirconium

X. Q. Ma, S. Q. Shi, C. H. Woo, Long-qing Chen

Research output: Contribution to journalArticle

30 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)283-290
Number of pages8
JournalComputational Materials Science
Volume23
Issue number1-4
DOIs
StatePublished - Apr 1 2002

Fingerprint

Nucleation
Zirconium
Hydrides
hydrides
Precipitates
nucleation
precipitates
Hydrogen
Cahn-Hilliard Equation
Phase Field Model
Landau-Ginzburg equations
Ginzburg-Landau Equation
Kinetic Model
Kinetics
Diffusion equation
Alignment
alignment
Dependent
kinetics
hydrogen

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Ma, X. Q. ; Shi, S. Q. ; Woo, C. H. ; Chen, Long-qing. / Effect of applied load on nucleation and growth of γ-hydrides in zirconium. In: Computational Materials Science. 2002 ; Vol. 23, No. 1-4. pp. 283-290.
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Effect of applied load on nucleation and growth of γ-hydrides in zirconium. / Ma, X. Q.; Shi, S. Q.; Woo, C. H.; Chen, Long-qing.

In: Computational Materials Science, Vol. 23, No. 1-4, 01.04.2002, p. 283-290.

Research output: Contribution to journalArticle

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