Experimental investigation and thermodynamic calculation of the phase equilibria in the Co-Nb-Ta ternary system

L. Zhou, C. P. Wang, Y. Yu, X. J. Liu, H. Chinen, T. Omori, Ikuo Ohnuma, R. Kainuma, K. Ishida

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The isothermal sections of the Co-Nb-Ta ternary system at 900 °C, 1000 °C, 1100 °C, 1200 °C, 1300 °C have been experimentally determined by electron probe microanalysis (EPMA) and X-ray diffraction (XRD) techniques on the equilibrated alloys. On the basis of the experimental data investigated in the present work, the phase equilibria in the Co-Nb-Ta system has been thermodynamically assessed by using CALPHAD (CALculation of PHAse Diagrams) method, and a consistent set of the thermodynamic parameters leading to reasonable agreement between the calculated results and experimental data was obtained.

Original languageEnglish
Pages (from-to)1554-1562
Number of pages9
JournalJournal of Alloys and Compounds
Volume509
Issue number5
DOIs
Publication statusPublished - 2011 Feb 3

Keywords

  • Metals and alloys
  • Phase diagrams
  • X-ray diffraction

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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