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Ability and Fading Behavior of Inoculants in Ductile Cast Iron Melt and Effect of Minor Elemets on them  

Kwon, San-Bin (Graduate School, Yeungnam Univ.)
Kwon, Hae-Wook (School of Mal. Sci. & Eng., Yeungnam Univ.)
Nam, Won-Sik (Haewon Ind. Co. Ltd.)
Publication Information
Journal of Korea Foundry Society / v.25, no.2, 2005 , pp. 102-108 More about this Journal
Abstract
The ability and fading behavior of inoculant in ductile cast iron melt and the effect of minor element on them were investigated. The result obtanied on nodularization and the performance of inoculant were more distinct when the melt was treated and held at the high temperature range of $1450{\sim}1500^{\circ}C$ than at the lower one of $1350{\sim}1400^{\circ}C$. The performance of 5.2%Mg-Fe-Si alloy was the best of 4 nodularizers. That of Fe-75%Si(I) alloy was better than other 4 inoculants. The performance of the Fe-75%Si(I) inoculant was deteoriated by the addition of sulfur or bismuth. On the other hand, that was improved by the addition of cerium, even though its extent was not big.
Keywords
ductile cast iron; melt treatment; inoculation; inoculant; fading of inoculant;
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