Coarsening kinetics of γ′ precipitates in the Ni-Al-Mo system

Tao Wang, Guang Sheng, Zi Kui Liu, Long Qing Chen

Research output: Contribution to journalArticle

73 Scopus citations

Abstract

The effect of Mo on the microstructure evolution and coarsening kinetics of γ′ precipitates in the Ni-Al-Mo system is studied using phase-field simulations with inputs from thermodynamic, kinetic and lattice parameter databases. For alloys of different compositions, the precipitate morphology and the statistical information of precipitate sizes are predicted as a function of annealing time. It is observed that increasing Mo content leads to a change of the precipitate morphology from being cuboidal to spherical as well as a reduction in the coarsening rate. Comparison between simulated results and existing experimental microstructure morphologies and coarsening rates shows good agreements.

Original languageEnglish (US)
Pages (from-to)5544-5551
Number of pages8
JournalActa Materialia
Volume56
Issue number19
DOIs
StatePublished - Nov 1 2008

All Science Journal Classification (ASJC) codes

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

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