1.8159 | 50CrV4 +I
| Numeric designation | 1.8159 |
|---|---|
| Chemical designation | 50CrV4 |
| State | I (isothermally hardened) |
| Etching | 3 % Nital |
This quenched and tempered steel was isothermally hardened (austempered). From austenitizing temperature (880 °C), the steel was quenched in a hot bath (335 °C). The microstructure consists of bainite with its typical ferrite spikes. The last picture shows an surface decarburization.
