Experimental Investigation of the Phase Equilibria in the Co-Nb-V Ternary System

C. P. Wang, S. Yang, S. Y. Yang, D. Wang, J. J. Ruan, J. Li, X. J. Liu

Research output: Contribution to journalArticlepeer-review

Abstract

Phase relationships in the Co-Nb-V ternary system were experimentally examined through electron probe microanalyzer and x-ray diffraction, and the isothermal sections of 1000 and 1200 °C were established. The obtained experimental results also show: (1) the (Nb, V) phase forms the continuous solid solution; (2) niobium solutes into α (Co) and σ-Co2V3 phases with a small solubility; (3) the C36 Laves-phase is stabilized at 1000 °C which is below its stability limits in Co-Nb binary system, and it forms a single phase region at 1000 °C; (4) vanadium has a large solubility in C36 Laves-phase; (5) vanadium and cobalt atoms show the analogous site occupation in C36 Laves-phase.

Original languageEnglish
Pages (from-to)592-598
Number of pages7
JournalJournal of Phase Equilibria and Diffusion
Volume36
Issue number6
DOIs
Publication statusPublished - 2015 Dec 1
Externally publishedYes

Keywords

  • Co-Nb-V ternary system
  • isothermal section
  • phase relationship
  • solubility

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Metals and Alloys
  • Materials Chemistry

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