Research Article
Effect of Mg Content and Heat Treatment on the Mechanical Properties of Low Pressure Die-Cast 380 Alloy
Table 3
Solidification reactions obtained from the three studied alloys.
| | Mark | Measured temperature (°C) | Reaction | | 0.06% Mg | 0.3% Mg | 0.55% Mg |
| | A | 572.7 | 572.9 | 570.4 | Formation of -Al phase | | B | 567.7 | 567.7 | 564.6 | Precipitation of -Al5SiFe phase | | C | 563.8 | 561.9 | 560.6 | Formation of Al-Si eutectic | | D | 536.0 | 539.5 | 537.6 | Transformation phase -Fe Al8Mg3FeSi6 | | E | 513.8 | 508.8 | 508.3 | Precipitation of Mg2Si phase | | F | 499.5 | 489.5 | 490.1 | Precipitation of Al2Cu eutectic | | G | 485.0 | 486.0 | 488.0 | Formation of Q-Al5Mg8Cu2 phase | | H | 490.0 | 480.0 | 480.0 | End of solidification |
|
|
In the case of DCM5, Q phase precipitates before Al2Cu reaction [18].
|
