EN AC-42200 | AlSi7Mg0,6 Fatigue fracture vs. overload fracture
| Numeric designation | EN AC-42200 |
|---|---|
| Chemical designation | AlSi7Mg0,6 |
| State | Fatigue fracture vs. overload fracture |
| Etching | 5 % NaOH |
In this microsection from an AlSi7Mg0,6 sand casting part, overload fracture surfaces and fatigue cracks were cut. While the fatigue cracks are rectilinear and transcrystalline, the overload fracture preferentially follows the interdendritic Al-Si eutectic.
