Effects of Modification Time and Ce Content on Microstructure of Eutectic Al-Si Alloy

Li Zhenkuan; Bian Xiufang; Han Na

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Effects of Modification Time and Ce Content on Microstructure of Eutectic Al-Si Alloy
Issue 4, Pages: 315-317(2007)
Published： 2007 ，
DOI：

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[1]李贞宽,边秀房,韩娜.Ce对共晶Al-Si合金微观组织的影响[J].特种铸造及有色合金,2007(04):315-317+245-246.

Li Zhenkuan, Bian Xiufang, Han Na. Effects of Modification Time and Ce Content on Microstructure of Eutectic Al-Si Alloy. [J]. Special Casting & Nonferrous Alloys (4):315-317(2007)
[1]李贞宽,边秀房,韩娜.Ce对共晶Al-Si合金微观组织的影响[J].特种铸造及有色合金,2007(04):315-317+245-246. DOI：

Li Zhenkuan, Bian Xiufang, Han Na. Effects of Modification Time and Ce Content on Microstructure of Eutectic Al-Si Alloy. [J]. Special Casting & Nonferrous Alloys (4):315-317(2007) DOI：

摘要

研究了Ce的变质处理时间和加入量对共晶Al-Si合金微观组织的影响。结果表明

Ce对共晶Al-Si合金有明显的变质效果

经Ce变质处理后

共晶Si由长针状变为珊瑚状;Ce的变质处理时间和加入量也会影响变质效果

Ce在共晶Al-Si合金中的最佳加入量（质量分数

下同）为1%

最佳变质处理时间为60

0min。

Abstract

Effects of Ce modification time and content on microstructure of eutectic Al-Si alloy have been investigated. The results show that with Ce modification

eutectic Si phase in the eutectic Al-Si alloy is converted from long needle to rosette. Modification time and content of Ce have the significant effects on grain refinement in the eutectic Al-Si alloy. The desirable modification effects can be observed with 1% Ce addition for 60

0 min.