Abstract
The phase equilibria in the Ti–Al and Ti–Cr binary systems and the isothermal section of the Ti–Al–Cr ternary system at 1000 °C were constructed from results obtained by studying diffusion multiples and quenched alloys with a scanning electron microscope in backscattered electron mode (SEM-BSE), a scanning electron microscope equipped with energy-dispersive X-ray spectroscopy (SEM-EDX) and an electron probe microanalysis (EPMA). Seven three-phase regions and the corresponding single- or two-phase regions are observed in this work and compared to previous experimental and calculated results. The regions of the L12, β (Ti) and β (Cr) phases are larger than those in the prior calculated results. The three-phase regions are also different with the previous reported experimental results.
Original language | English |
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Article number | 154236 |
Journal | Journal of Alloys and Compounds |
Volume | 826 |
DOIs | |
State | Published - 15 Jun 2020 |
Keywords
- Diffusion multiples
- Intermetallics
- Phase diagram
- Phase transformation
- TiAl alloy
- Ti–Al–Cr