Influence of solidification condition and Sr addition amount on microstructure of Al-13Si alloy

Huang Wanru; Yuan Weiwei; Liao Hengcheng; Wu Shenqing

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Influence of solidification condition and Sr addition amount on microstructure of Al-13Si alloy
Issue S1, Pages: 96-99(2008)
Published： 2008 ，
DOI：

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[1]黄婉如,袁伟伟,廖恒成,吴申庆.凝固条件和Sr含量对Al-13Si合金组织的影响[J].特种铸造及有色合金,2008(S1):96-99.

Huang Wanru, Yuan Weiwei, Liao Hengcheng, et al. Influence of solidification condition and Sr addition amount on microstructure of Al-13Si alloy. [J]. Special Casting & Nonferrous Alloys (S1):96-99(2008)
[1]黄婉如,袁伟伟,廖恒成,吴申庆.凝固条件和Sr含量对Al-13Si合金组织的影响[J].特种铸造及有色合金,2008(S1):96-99. DOI：

Huang Wanru, Yuan Weiwei, Liao Hengcheng, et al. Influence of solidification condition and Sr addition amount on microstructure of Al-13Si alloy. [J]. Special Casting & Nonferrous Alloys (S1):96-99(2008) DOI：

摘要

熔炼不同Sr含量的Al-13Si合金

在不同铸型条件下考察凝固条件和Sr含量对凝固组织的影响。结果发现凝固速度和Sr含量是影响变质效果的两个重要因素

凝固速度越快或Sr含量越高

共晶组织越细密

变质效果越好

没有发现过变质现象

并且重熔对Sr的烧损影响不大。

Abstract

Al-13Si alloy with different addition amount of Sr were prepared and then poured into three kinds of moulds. Addition amount of strontium and solidification condition on microstructure of Al-13%Si alloy were discussed. It was found that solidification condition and addition amount of Sr were two main factors for modification efficient. The modification is better when the solidification velocity is faster as well as when Sr content is higher. The "post-modification" phenomenon is not found in this research. Remelting has little effect on the melting loss of Sr.

关键词

铝硅共晶Sr含量凝固条件变质

Keywords

Al-Si eutecticSr contentsolidification conditionModification.

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