Wormhole
| Numeric designation | Schlauchpore |
|---|---|
| Chemical designation | Schlauchpore |
| Etching | ungeätzt |
Here, a wormhole is present in a magnesium casting. It is formed when air bubbles rise upward in the melt. Directly behind the rising bubble, the resulting “hose”, whose surface is oxidized, is compressed again by the surrounding melt.
