Table 1 BMG-forming compositions in the Mg-rich region of the Mg–Ag–Ca ternary system, and their associated critical casting sizes, thermophysical properties, and Vickers hardness.
Composition | Z C (mm) | D C (mm) | * T g (°C) | T X (°C) | ΔT X (°C) | T m (°C) | T l (°C) | HV |
|---|---|---|---|---|---|---|---|---|
Mg76.9Ag15.4Ca7.7 [13] | 1.1 | 1.7 | 125 | 141 | 16 | 400 | 432 | 240 |
Mg75Ag15Ca10 | 0.7 | 1.0 | 132 | 146 | 14 | 404 | 432 | 210 |
Mg75Ag20Ca5 | 0.8 | 1.0 | 142 | 155 | 13 | 416 | 442 | 219 |
Mg72.5Ag17.5Ca10 | 1.1 | 1.5 | 135 | 152 | 17 | 416 | 435 | 261 |
Mg72.5Ag20Ca7.5 | 0.5 | — | 155 | 167 | 12 | 415 | 446 | 259 |
Mg69.2Ag15.4Ca15.4 [13] | 0.3 | — | — | — | — | 408 | 519 | — |
Mg70Ag20Ca10 | 1.0 | 1.5 | 143 | 156 | 13 | 416 | 439 | 227 |
Mg69.2Ag23.1Ca7.7 [13] | 1.0 | 1.5 | 129 | 155 | 16 | 412 | 440 | — |
Mg70Ag25Ca5 | 0.5 | — | — | — | — | — | — | — |
Mg67.5Ag22.5Ca10 | 0.8 | 1.0 | 148 | 162 | 14 | 415 | 437 | 224 |
Mg61.5Ag23.1Ca15.4 [13] | 0.7 | 1.0 | 138 | 168 | 30 | 426 | 595 | — |
