Study on Heterogeneous Nuclei in Cast H13 Steel Modified by Rare Earth
来源期刊：JOURNAL OF RARE EARTHS2001年第4期
论文作者：丁文江 兰杰 贺俊杰 朱燕萍 王渠东
Abstract: The dendrite segregation in cast H13 steel was weakened with RE modification treatment. Grain boundary carbide during quenching was also under control and impact toughness was improved greatly. By thermodynamic calculation, analysis of two-dimensional lattice misfitting and electron probe analysis, it is found that Ce2O3 may act as the heterogeneous nuclei of modified cast H13 steel.
丁文江1，兰杰1，贺俊杰1，朱燕萍1，王渠东1
(1.School of Materials Science Engineering, Shanghai Jiao Tong University,)
Abstract:The dendrite segregation in cast H13 steel was weakened with RE modification treatment. Grain boundary carbide during quenching was also under control and impact toughness was improved greatly. By thermodynamic calculation, analysis of two-dimensional lattice misfitting and electron probe analysis, it is found that Ce2O3 may act as the heterogeneous nuclei of modified cast H13 steel.
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