Abstract
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 language | English |
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Pages (from-to) | 208-213 |
Number of pages | 6 |
Journal | Journal of Alloys and Compounds |
Volume | 466 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2008 Oct 20 |
Keywords
- Intermetallics
- Metals
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry