GRAPHITE NUCLEI IN CAST IRON UNDER INOCULATION TREATMENT

Abstract

Abstract: Melted cast iron was inoculated by FeSi,then quenched to interrupt the dissolution, the non-metallic inclusions,in which the graphite phase was already occured,formed in the dissolution region,They dissolved into the melt soon,but the inclusions coated by graphite could exist for along time.The function of inoculant is to create an undercooling solution for carbon,thereby the non-metallic inclusions in the solution may be activated as the nuclei for graphite.

Key words: inoculation, cast iron, dissolution region, activated nuclei

WAMG Chunqi YANG Jiguang Tianjin University,Tianjin,China associate professor,Faculty of Foundry,Tianjin University.Tianjin 300072,China. GRAPHITE NUCLEI IN CAST IRON UNDER INOCULATION TREATMENT[J]. Acta Metallurgica Sinica (English Letters), 1993, 6(12): 411-415.

References

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