Graphite corrosion (spongiosis) in a degenerated nodular graphite iron
| Chemical designation | GJS |
|---|---|
| State | spongiosis |
| Etching | 3 % Nital |
Spongiosis (spongy dissolution) is a form of selective corrosion of cast iron in which the corrosive attack progresses along the graphite-matrix interfaces and dissolves the iron matrix. In this example, the corrosion followed the degenerated graphite pebbles (chunky graphite) in a ferritic matrix.
Cast Iron
GJV-500Si5 Graphite classification and fracture appearance in the tensile test
EN-GJV-450 | 5.2300
EN-GJS-600-3 | 5.3201 Tensile specimen with shrinkage cavity
EN-GJS-500-7 | 5.3200 Production welding
EN-GJV-400 | 5.2201
GJS-1400-1 | EN-JS1130 | as cast
EN GJSA-XNi35
EN-GJSA-XNiSiCr35-5-2 | 5.3505 | D5S
EN-GJS-500-7 | 5.3200 | Tool life problems in machining
GJS-1400-1 | ADI | Fracture appearance in tensile test