The mechanical Properties of As cast QT450 10 Ductile Iron With Different Metallographic Structures

The mechanical properties of as cast QT450 10 ductile iron with different metallographic structures were investigated. The result shows that it is the graphite morphology of nodular iron that mostly influence the mechanical properties of as cast ductile iron. The curve of nodulizing grade mechanical properties is given as well. On a certain condition, when the nodulizing grade of graphite of as cast ductile iron is grade 1 to 4, its mechanical properties are qualified.