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铸铁孕育处理时的石墨核心研究

王春祺 , 杨继光

金属学报

将铁水用75FeSi孕育后液淬,终止其溶解过程,在溶解区中出现已经生长石墨相的非金属夹杂物,它们随后又溶回铁水中去.但已经复盖有石墨相的晶核能存在较长的时间孕育剂的作用是提供一个碳的过冷溶液,使位于其中的非金属夹杂物活化成为晶核

关键词: 铸铁孕育 , cast iron , activated nuclei

GRAPHITE NUCLEI IN CAST IRON UNDER INOCULATION TREATMENT

WAMG Chunqi YANG Jiguang Tianjin University , Tianjin , China associate professor , Faculty of Foundry , Tianjin University.Tianjin 300072 , China

金属学报(英文版)

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.

关键词: inoculation , null , null

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