Linking phase-field model to CALPHAD: Application to precipitate shape evolution in Ni-base alloys

J. Z. Zhu, Z. K. Liu, V. Vaithyanathan, L. Q. Chen

Research output: Contribution to journalArticle

115 Scopus citations

Abstract

A three-dimensional phase-field model was proposed to analyze the precipitate microstructure in Ni-base superalloys. CALPHAD method was used to extract the thermodynamic and kinetic parameters from the existing databases. The compositional dependence of atomic mobilities and elastic constants was considered to solve phase-field equations and elastic equilibrium equations. Analysis suggested that Ni3Al precipitate shape evolution in a disordered face centered cubic matrix depended on the balance between interfacial energy and elastic energy relaxation.

Original languageEnglish (US)
Pages (from-to)401-406
Number of pages6
JournalScripta Materialia
Volume46
Issue number5
DOIs
StatePublished - Mar 1 2002

All Science Journal Classification (ASJC) codes

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

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