C-Nb Phase Diagrams
Invariant Reactions
| T | reaction | x(C) | x(Nb) | w(C) | w(Nb) |
| C | mole/mole | mole/mole | kg/kg | kg/kg | |
| 3297.3 | Liquid => Graphite + Fcc | 0.6327 | 0.3673 | 0.1821 | 0.8179 |
| 3053.1 | Liquid + Fcc => Hcp | 0.2653 | 0.7347 | 0.0446 | 0.9554 |
| 2339.5 | Liquid => Hcp + Bcc | 0.1020 | 0.8980 | 0.0145 | 0.9855 |