Coarsening kinetics of δ′-Al3Li precipitates: Phase-field simulation in 2D and 3D

V. Vaithyanathan, L. Q. Chen

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28 Scopus citations

Abstract

The coarsening kinetics of δ-Al3Li precipitates in a disordered face-centered cubic matrix were examined by the continuum diffuse-interface phase-field method. The δ′-α two-phase microstructure was described by a three-component order parameter field and a concentration field. The temporal evolution of the fields were obtained by solving the coupled Allen-Cahn and Cahn-Hilliard equations. The cube of average particle size distribution (PSD) was dependent with time in both 2D and 3D systems. The scaling functions and PSDs obtained in both 2D and 3D exhibited similar approximately time-invariant profiles. The main difference between 2D and 3D systems was in the rate coarsening for the same set of thermodynamic and kinetic parameters.

Original languageEnglish (US)
Pages (from-to)967-973
Number of pages7
JournalScripta Materialia
Volume42
Issue number10
DOIs
StatePublished - Apr 28 2000

All Science Journal Classification (ASJC) codes

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

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