Computer simulation of hydride precipitation in bi-crystalline zirconium

X. Q. Ma, S. Q. Shi, C. H. Woo, L. Q. Chen

Research output: Contribution to journalConference article

Abstract

γ-hydride precipitation and growth in a zirconium bi-crystal were simulated using a phase field kinetic model. 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. The morphology evolution of γ-hydride with and without external load was simulated. It is demonstrated that nucleation density of the hydride at the grain boundary increases as compared to the bulk and favorable hydride precipitation at the grain boundary become weaker when an external load is applied.

Original languageEnglish (US)
Pages (from-to)AA4.14.1-AA4.14.5
JournalMaterials Research Society Symposium - Proceedings
Volume677
StatePublished - Dec 1 2001
EventAdvances in Materials Therory and Modeling - Bridging Over Multiple Length and Time Scales - San Francisco, CA, United States
Duration: Apr 16 2001Apr 20 2001

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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