Phase equilibria in the Ni-Co-Ga alloy system

R. Ducher, R. Kainuma, K. Ishida

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Phase equilibria among the α (A1), α′ (L12), β (B2), δ (Ni5Ga3) and ε (Ni13Ga9) phases at elevated temperatures and the existing composition region of the martensite phase at room temperature in the Ni-Co side of the Ni-Co-Ga system were examined by electron probe microanalysis (EPMA) using diffusion triples which were fabricated by two-step diffusion coupling. It was confirmed that single-phase regions of the α, α′ and β phases at 700 and 1000 °C exist in a wide composition range parallel to Ni-Co section and that the existing region of the martensite phase at room temperature is also located over a wide range in the β phase along the β + α (or α′) two-phase region.

Original languageEnglish
Pages (from-to)208-213
Number of pages6
JournalJournal of Alloys and Compounds
Issue number1-2
Publication statusPublished - 2008 Oct 20


  • Intermetallics
  • Metals

ASJC Scopus subject areas

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


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