1.7225 | 42CrMo4 laser hardened (+Q), former austenite grain boundaries
| Numeric designation | 1.7225 |
|---|---|
| Chemical designation | 42CrMo4 |
| State | laser hardened (+Q), former austenite grain boundaries |
| Etching | grün QT |
Etching on former austenite grain boundaries with the etchant “Green QT”. Images 1-3 show the laser-hardened rim zone. Pictures 4-7 show the former austenite grain boundaries in the core.
