Abstract
The equilibrium phases of three Ir-Nb-Ni-Al quaternary alloys at the Ir-rich corner were investigated in some detail. The phases were determined by X-ray profile as well as microstructure observation. Three phases of fcc/L12-Ir3Nb/B2-IrAl were found in two samples, and four phases of fcc/L12-Ir3Nb/L12-Ni3Al/B2-IrAl were characterized in one sample. The electron probe microanalysis (EPMA) technique was applied for analyzing the phase composition of this quaternary system. A partial quaternary phase diagram at the Ir-rich side was plotted according to the EPMA results.
Original language | English |
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Pages (from-to) | 893-902 |
Number of pages | 10 |
Journal | Intermetallics |
Volume | 10 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2002 Sep 1 |
Externally published | Yes |
Keywords
- A. Intermetallics, miscellaneous
- B. Alloy design
- B. Phase diagram
- B. Phase identification
ASJC Scopus subject areas
- Chemistry(all)
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry