Spheroidizing Effects of Ce on Fe-rich Impurity Phase in Commercial Pure Aluminum

Guan Kexiang; Li Jie; Xu Bin; Ni Wangdong

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Spheroidizing Effects of Ce on Fe-rich Impurity Phase in Commercial Pure Aluminum
Issue 1, Pages: 57-60(2008)
Published： 2008 ，
DOI：

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[1]官可湘,李洁,徐斌,倪网东.稀土Ce对工业纯铝中富Fe相的球化作用[J].特种铸造及有色合金,2008(01):57-60+1.

Guan Kexiang, Li Jie, Xu Bin, et al. Spheroidizing Effects of Ce on Fe-rich Impurity Phase in Commercial Pure Aluminum. [J]. Special Casting & Nonferrous Alloys (1):57-60(2008)
[1]官可湘,李洁,徐斌,倪网东.稀土Ce对工业纯铝中富Fe相的球化作用[J].特种铸造及有色合金,2008(01):57-60+1. DOI：

Guan Kexiang, Li Jie, Xu Bin, et al. Spheroidizing Effects of Ce on Fe-rich Impurity Phase in Commercial Pure Aluminum. [J]. Special Casting & Nonferrous Alloys (1):57-60(2008) DOI：

摘要

通过加Ce前后工业纯铝显微组织、力学性能和耐中性盐雾性能的比较以及SEM、EDS等分析

研究了稀土Ce对纯铝中富Fe相的球化作用及其对工业纯铝力学性能和耐蚀性能的影响。结果表明

Ce对纯铝中富Fe相有球化作用

使富Fe相由粗大汉字状变为细小团球状

并与Fe、Si等杂质形成高熔点金属间化合物。通过加Ce变质

使工业纯铝的抗拉强度提高44.18%

伸长率提高32.04%

耐中性盐雾时间延长120%。

Abstract

The spheroidizing effects of Ce on Fe（Si）-rich impurity phase

and its effects on the mechanical properties and the erosion resistance of commercial pure aluminum were investigated by microstructure observation

tensile strength testing

inert erosion resistance as well as SEM and EDS analysis.The results reveal that Ce can spheroidize Fe-rich phase from coarse Chinese script into fine spheroid and create high point intermetallic compound containing Fe and Si impurity.The tensile strength and elongation of commercial pure aluminum with Ce modification were improved by 44.18% and by 32.04%

respectively

with erosion resistance raising by 220%

compared with that of aluminum without Cr modification.