Fractured tensile test specimen of a nodular graphite cast iron. This specimens failed by brittle failure, as seen from the lack of plastic deformation. Note that nodular graphite cast irons are usually ductile, so this specimen is not representative for this class of alloys.
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Captions
Example of a brittle fracture of cast iron specimen, after tensile testing
Exemple de rupture fragile sur une éprouvette en fonte, après essai de traction
Beispiel eines spröden Bruches, an einem Muster aus Gusseisen, nach dem Zugversuch