Table 4 Summary of the phase transformation temperatures of alloy 718 + TiB2 registered by DSC.
Addition of TiB2 to Alloy 718, wt% | 0 | 1.25 | 2.5 | 3.75 | 5.0 |
|---|---|---|---|---|---|
Upon heating at 20 °C/min | |||||
Max. rate of Laves phase dissolution, °C | 1186 | 1130 | 1129 | 1131 | 1139 |
Max. rate of B-rich phases dissolution, °C | – | 1212 | 1215 | 1216 | 1214 |
Liquidus, °C | 1362 | 1332 | 1291 | 1251 | 1214 |
Upon cooling at 20 °C/min | |||||
Liquidus, °C | 1344 | 1308 | 1279 | 1238 | 1200 |
Solidus, °C | 1244 | 1116 | 1087 | 1098 | 1080 |
Max. rate of Laves/B-rich phases precipitation, °C | 1156 | 1158 | 1159 | 1166/1150 | 1174/1144 |
