La RE Element Refined β-Fe Phase in Recycled Al-Si Alloy

Zhang Guangquan Mao Xiemin Ouyang Zhiying Miao Chuanrong Han Kui

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La RE Element Refined β-Fe Phase in Recycled Al-Si Alloy
Issue 6, Pages: 5-7(2003)
Published： 2003 ，
DOI：

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[1]章光全,,,,,,,,,,毛协民,,,,,,,,,,欧阳志英,,,,,,,,,,苗传荣,,,,,,,,,,韩奎.稀土La细化再生铝硅合金中β-Fe相的机理研究[J].特种铸造及有色合金,2003(06):5-7+67.

Zhang Guangquan Mao Xiemin Ouyang Zhiying Miao Chuanrong Han Kui. La RE Element Refined β-Fe Phase in Recycled Al-Si Alloy. [J]. Special Casting & Nonferrous Alloys (6):5-7(2003)
[1]章光全,,,,,,,,,,毛协民,,,,,,,,,,欧阳志英,,,,,,,,,,苗传荣,,,,,,,,,,韩奎.稀土La细化再生铝硅合金中β-Fe相的机理研究[J].特种铸造及有色合金,2003(06):5-7+67. DOI：

Zhang Guangquan Mao Xiemin Ouyang Zhiying Miao Chuanrong Han Kui. La RE Element Refined β-Fe Phase in Recycled Al-Si Alloy. [J]. Special Casting & Nonferrous Alloys (6):5-7(2003) DOI：

摘要

研究了再生副牌ZL10 2合金中稀土La的加入量和 β Fe相平均长度的关系

分析了La在合金和 β Fe相中的分布情况。结果表明

La在熔体中形成了稳定金属间化合物

凝固时促进了 β Fe相形核

同时La在 β Fe相表面富集

阻碍了 β Fe相长大。因此

加入稀土La能很好地细化再生铝合金中的 β Fe相

Abstract

The relationship between La addition and average length of β Fe phase in recycled ZL102 alloy was examined

and the distribution of La element in β Fe phase and alloy was analyzed. The results showed that La formed stable intermetallic compound in melt and promoted the nucleation of β Fe phase in recycled Al Si alloy during solidification. Meanwhile

the enrichment of La in surface of the β Fe phase restricted its growth. So

RE La element can refine the β Fe phase in recycled alloy significantly.