Mg-Cu Phase Diagrams
Invariant Reactions
| T | reaction | x(Cu) | x(Mg) | w(Cu) | w(Mg) |
| C | mole/mole | mole/mole | kg/kg | kg/kg | |
| 725.5 | Liquid => Fcc + Cu2Mg | 0.7854 | 0.2146 | 0.9054 | 0.0946 |
| 550.6 | Liquid => Cu2Mg + CuMg2 | 0.4073 | 0.5927 | 0.6424 | 0.3576 |
| 482.0 | Liquid => CuMg2 + Hcp | 0.1601 | 0.8399 | 0.3327 | 0.6673 |