Experimental Investigation and Thermodynamic Calculation of the Phase Equilibria in the Co-Cu-V Ternary System

X. J. Liu, Y. Yu, Y. H. Liu, W. L. Huang, Y. Lu, Y. H. Guo, C. P. Wang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The phase equilibria of the Co-Cu-V ternary system at 900, 1000, 1100 and 1200 °C have been experimentally determined by optical microscopy and electron probe micro-analysis of the equilibrated alloys. The phase transformations were investigated by means of the differential scanning calorimetry. Based on the experimental data of phase equilibria and thermodynamic properties, the thermodynamic assessment of the Co-Cu-V ternary system was carried out by using the calculation of phase diagrams method. A consistent set of the thermodynamic parameters leading to reasonable agreement between the calculated results and experimental data was obtained in the Co-Cu-V ternary system. Meanwhile, the calculated results show that the critical temperature of metastable magnetically induced miscibility gap of (αfCo) and (αpCo) phases in the Co-V system gradually decreases with increasing Cu composition in the range of 0-3 wt.% additions.

Original languageEnglish
Pages (from-to)733-742
Number of pages10
JournalJournal of Phase Equilibria and Diffusion
Volume38
Issue number5
DOIs
Publication statusPublished - 2017 Oct 1
Externally publishedYes

Keywords

  • CALPHAD
  • Co-Cu-V alloys
  • phase equilibria
  • phase separation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Metals and Alloys
  • Materials Chemistry

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