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Refinement of Hypereutectic Al–Si Alloy by a New Al–Sc–P Master Alloy

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Abstract

In this article, a novel Al–Sc–P master alloy with ScP particles was successfully synthesized. The XRD result identifies that the Al–1Sc–1P master alloy is composed of two phases, i.e. α-Al and ScP. The microstructure analysis shows that ScP present grey granular particles with 6.5 μm in size. The reason for the excellent refining performance of this master alloy is discussed based on the chemical kinetics theory. During the solidification process, P which dissolved homogeneously in the melt bonded with Al and precipitated in the form of AlP, providing heterogeneous nucleation sites for primary Si.

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Authors and Affiliations

  1. School of Materials Science and Engineering, University of Jinan, Jinan, 250022, Shandong, People’s Republic of China

    Min Zuo

  2. Key Laboratory for Liquid–Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan, 250061, Shandong, People’s Republic of China

    Xiangfa Liu

Authors
  1. Min Zuo
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  2. Xiangfa Liu
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Correspondence to Min Zuo.

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Zuo, M., Liu, X. Refinement of Hypereutectic Al–Si Alloy by a New Al–Sc–P Master Alloy. J Inorg Organomet Polym 22, 64–69 (2012). https://doi.org/10.1007/s10904-011-9516-4

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  • DOI: https://doi.org/10.1007/s10904-011-9516-4

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