Research Article
Obtaining Martensitic Structures during Thixoforming of Hypoeutectic Gray Cast Iron
Table 4
Vickers microhardness for alloys (95% confidence interval).
| Condition | Predominant phase | Vickers microhardness (HV) |
| 1145°C | Ferrite/pearlite | 331.3 ± 31.6 | 1135°C | 325.1 ± 36.7 |
| 1130°C–0 s | Ferrite/pearlite | 379.5 ± 39.9 | Martensite colonies | 577.8 ± 34.6 |
| 1130°C–30 s | Martensite | 593.6 ± 41.9 | 1130°C–60 s | Martensite | 555.3 ± 39.3 | 1130°C–90 s | Ferrite/pearlite | 329.3 ± 30.2 |
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