Table 4.
Measured and predicted yield strength for 20 °C, 600 °C and 800 °C and microhardness of the model alloys
| Alloy | Microhardness, HV | Yield Strength, MPa | ||||||
|---|---|---|---|---|---|---|---|---|
| 20 °C | 600 °C | 800 °C | ||||||
| Measured | Estimated Using Microhardness | Predicted | Measured | Predicted | Measured | Predicted | ||
| A1 | 553 | 1070 * | 1316 | 1409 | 1093 | 1011 | 187 | 631 |
| A2 | 556 | 1049 * | 1323 | 1297 | 1122 | 937 | 287 | 390 |
| A3 | 650 | 1608 | 1454 | 1385 | 1120 | 556 | 506 | |
| A4 | 552 | 1337 | 1306 | 1096 | 1016 | 157 | 392 | |
| A5 | 540 | 1295 | 1177 | 1113 | 874 | 898 | 468 | |
| A6 | 489 | 1290 | 1353 | 1048 | 991 | 509 | 504 | |
* The maximum strength attained before fraction in the elastic region.