Mg-Eu Phase Diagrams
Invariant Reactions
| T | reaction | x(Eu) | x(Mg) | w(Eu) | w(Mg) |
| C | mole/mole | mole/mole | kg/kg | kg/kg | |
| 575.2 | Liquid + Mg2Eu => Mg5Eu | 0.1541 | 0.8459 | 0.5325 | 0.4675 |
| 573.7 | Liquid => Mg17Eu2 + Mg5Eu | 0.1455 | 0.8545 | 0.5156 | 0.4844 |
| 571.6 | Liquid => Hcp + Mg17Eu2 | 0.0662 | 0.9338 | 0.3072 | 0.6928 |
| 555.7 | Mg5Eu + Mg2Eu => Mg4Eu | 0.3333 | 0.6667 | 0.7576 | 0.2424 |
| 463.2 | Liquid + Mg2Eu => MgEu | 0.6602 | 0.3398 | 0.9239 | 0.0761 |
| 454.6 | Liquid => MgEu + Bcc | 0.6739 | 0.3261 | 0.9282 | 0.0718 |