| 稀土球铁中Ce的分布及作用 |
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| 引用本文： | 朱瑞辉,王禹,韩其勇,宋维锡.稀土球铁中Ce的分布及作用[J].金属学报,1992,28(5):26-31. |
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| 作者姓名： | 朱瑞辉 王禹 韩其勇 宋维锡 |
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| 作者单位： | 北京科技大学，北京科技大学，北京科技大学，北京科技大学 工程师，北京(100083)北京科技大学院内海淀区精特新材料研究所 |
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| 摘 要： | 用定向凝固和电解萃取—放射性同位素测量技术,分析了球化剂Ce在球铁各相中的分布;配合测量石墨球化率,确定了球铁含Ce量与石墨球化程度的关系,结果表明:Ce在球铁中主要以合金化Ce的形式存在,但石墨相Ce含量是石墨球化程度的表征值;只有当石墨相Ce含量高于一定值时,石墨才能完全球化。
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| 关 键 词： | 稀土球墨铸铁 Ce 定向凝固 石墨形态 |
| 收稿时间： | 1992-05-18 |
| 修稿时间： | 1992-05-18 |
DISTRIBUTION AND BEHAVIOUR OF Ce IN RE NODULAR CAST IRON |
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| ZHU Ruihui,WANG Yu,HAN Qiyong,SONG Weixi University of Science and Technology Beijing,Correspondent engineer.DISTRIBUTION AND BEHAVIOUR OF Ce IN RE NODULAR CAST IRON[J].Acta Metallurgica Sinica,1992,28(5):26-31. |
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| Authors: | ZHU Ruihui WANG Yu HAN Qiyong SONG Weixi University of Science and Technology Beijing Correspondent engineer |
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| Affiliation: | ZHU Ruihui,WANG Yu,HAN Qiyong,SONG Weixi University of Science and Technology Beijing,Correspondent engineer,Institute of precise and Special New Materials,University of Science and Technology Beijing,Beijing ) |
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| Abstract: | The dependence of nodularization of graphite upon Ce content in RE nodular
cast iron, prepared by directional solidification, has been investigated by electrolytic extrac-
tion-radioisotope assay analysis of Ce in each phase of the iron together with measurement of
nodulized graphite. Results show that the Ce occurs mainly as alloyed form. In the graphite
phase, the Ce content is believed to be characterization of nodularization. The graphite would
completely nodulized only the Ce is over a certain content in graphite phase. |
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| Keywords: | RE nodular cast iron directional solidification graphite Ce |
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