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Homogeneity ranges of various ternary phases in the Al–Fe–Si system at 800 °C determined by EPMA.
| Phase | Homogeneity range/at.% |
|---|---|
| τ1 | Al21.0–41.5Fe37.5−38.5Si41.5–21.0 |
| τ3 | Al52.0−54.5Fe25.0−26.5Si23.0−19.0 |
| τ7 | Al41.0−46.5Fe24.0−26.0Si35.0−27.5 |
| τ8 | Al23.0−28.5Fe33.5−34.5Si42.5−37.5 |
| τ11 | Al62.5−65.0Fe26.0Si11.5−9.0 |
