Three-dimensional phase-field simulations of coarsening kinetics of γ′ particles in binary Ni-Al alloys

J. Z. Zhu, T. Wang, A. J. Ardell, S. H. Zhou, Z. K. Liu, L. Q. Chen

Research output: Contribution to journalArticle

143 Citations (Scopus)

Abstract

The coarsening kinetics of γ precipitates in binary Ni-Al alloy is studied using three-dimensional (3D) phase-field simulations. The bulk thermodynamic information and atomic diffusion mobilities are obtained from databases constructed using the CALPHAD approach, while the experimental values for the interfacial energy, elastic constants and lattice mismatch are directly employed in the phase-field model. Specifically, we predict the morphological evolution, average precipitate size, and size distribution as a function of time for a given temperature and composition. Comparison of the phase-field simulation results with experiments shows good quantitative agreement in both time and length scales.

Original languageEnglish (US)
Pages (from-to)2837-2845
Number of pages9
JournalActa Materialia
Volume52
Issue number9
DOIs
StatePublished - May 17 2004

Fingerprint

Coarsening
Precipitates
Lattice mismatch
Kinetics
Elastic constants
Interfacial energy
Thermodynamics
Chemical analysis
Experiments
Temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

Cite this

Zhu, J. Z. ; Wang, T. ; Ardell, A. J. ; Zhou, S. H. ; Liu, Z. K. ; Chen, L. Q. / Three-dimensional phase-field simulations of coarsening kinetics of γ′ particles in binary Ni-Al alloys. In: Acta Materialia. 2004 ; Vol. 52, No. 9. pp. 2837-2845.
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Three-dimensional phase-field simulations of coarsening kinetics of γ′ particles in binary Ni-Al alloys. / Zhu, J. Z.; Wang, T.; Ardell, A. J.; Zhou, S. H.; Liu, Z. K.; Chen, L. Q.

In: Acta Materialia, Vol. 52, No. 9, 17.05.2004, p. 2837-2845.

Research output: Contribution to journalArticle

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AB - The coarsening kinetics of γ′ precipitates in binary Ni-Al alloy is studied using three-dimensional (3D) phase-field simulations. The bulk thermodynamic information and atomic diffusion mobilities are obtained from databases constructed using the CALPHAD approach, while the experimental values for the interfacial energy, elastic constants and lattice mismatch are directly employed in the phase-field model. Specifically, we predict the morphological evolution, average precipitate size, and size distribution as a function of time for a given temperature and composition. Comparison of the phase-field simulation results with experiments shows good quantitative agreement in both time and length scales.

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