| In this study, CV graphite cast iron was made from adding small amount of A1 after making an incomplete spheroidal graphite by adding small amount of Fesi-Mg alloy. As a result, it was found that CV ratio and graphite length were increased as increasing amount of Al addition and holding time, but graphite width was decreased, Also, it was found that brinell hardness value 170-190 HB and tensile strength value 38-40 ㎏/㎟ of the CV graphite cast iron were closer to those values of the spheroidal than those values of the flake graphite cast iron, but thermal diffusivity value 7.8×10^(-6)㎡/sec of the CV graphite cast iron was closer to that value of the flake than that value of the spheroidal graphite cast iron. |
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