65 -Effects of Titanium, Cerium or Aluminum Addition on Microstructure and Mechanic Properties of DI

Project 65: 65 -Effects of Titanium, Cerium or Aluminum Addition on Microstructure and Mechanic Properties of Ductile Iron Castings

Ductile iron, commonly abbreviated as DI, is the most commonly used type of cast iron for structural components due to its relatively high tensile strength and good elongation. The graphite morphology of DI in which the graphite forms is shown in Figure 1. The formation of the nodular graphite leads to a more ductile casting than the flaky graphite that is seen in gray iron because of the spheroidal nature of the nodules; the spheres allow stress to flow around them, in turn inhibiting crack formation and propagation [1]. The tradeoff of the different graphite shapes is that DI has far less capacity for vibration dampening and a lower heat transfer rate. In addition, ductile iron has a high solidification shrinkage amount due to the spherical nature of the graphite particles [2], [3].

Project 65 will be available to the public for $100.00 in April 2026.  It is currently available to Ductile Iron Society Members for free. Simply log in to your member account, add it to your cart, and 'check out'.  A link will be sent to your email to download the document.