Thermodynamic study of phase equilibria in the Ni-Fe-B system

Tatsuya Tokunaga, Hiroshi Ohtani, Mitsuhiro Hasebe

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


The phase equilibria in the Ni-Fe-B ternary system have been studied experimentally and using thermodynamic calculations. The Gibbs energy of the individual phases was described by the regular solution approximation and the two-sublattice model. The thermodynamic parameters for each phase were evaluated using the experimental data on phase boundaries obtained from differential scanning calorimetry (DSC) and other available literature data. The evaluated parameters enabled us to obtain reproducible calculations of the isothermal section diagrams. The calculated isopleth at the 26 mol% B section agreed with the DSC data obtained in this study, whereas the calculated liquidus and solidus temperatures were higher than the reported values at the Ni2B-Fe2B pseudo-binary section.

Original languageEnglish
Pages (from-to)1193-1198
Number of pages6
JournalMaterials Transactions
Issue number6
Publication statusPublished - 2005 Jun
Externally publishedYes


  • Borides
  • Calculation of phase diagrams
  • Nickel-iron-boron
  • Phase equilibria
  • Thermodynamic analysis

ASJC Scopus subject areas

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


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