Predictions of the Al-rich region of the Al-Co-Ni-Y system based upon first-principles and experimental data

W. J. Golumbfskie, S. N. Prins, T. J. Eden, Z. K. Liu

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

A thermodynamic database has been produced for the Al-Co-Ni-Y quaternary system, with an emphasis on the Al-rich region of the Al-Ni-Y ternary system. The database was created using the CALPHAD method, combining existing binary systems with relevant experimental and first-principles information for selected Al-Ni-Y and Co-containing compounds. The thermodynamic database was used to produce equilibrium and non-equilibrium Scheil simulations to determine the phases present in Al-Co-Ni-Y alloys. The values for the Scheil simulation show good agreement, when compared with experimentally determined phase fractions of intermetallic particles dispersed in an Al matrix for three Al-rich quaternary alloys.

Original languageEnglish (US)
Pages (from-to)124-135
Number of pages12
JournalCalphad: Computer Coupling of Phase Diagrams and Thermochemistry
Volume33
Issue number1
DOIs
StatePublished - Mar 2009

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Computer Science Applications

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