curves with the shape of 3-D nodule size distribution (Table 2). There is a clear correlation between the two-segment so-


(a)


lidification curve and the bi-modal 3-D graphite nodule size distributions.


(b)


(c)


(d)


Figure 10. Thermodynamic predictions of oxi-sylfide formation in ductile iron melt according to different scenarios.


Figure 11. Solidification kinetics in 1” wall thickness casting from no-bake sand mold (Case B).


Table 2. Effect of Post-Inoculation on 2-D Nodule Count, 3-D Nodule Size Distribution Mode, and Shape of Solidification Curves


International Journal of Metalcasting/Volume 8, Issue 2, 2014


47


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