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The crystal growth of silicon in Al-Si alloys

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Abstract

Some crystallographic observations of primary silicon and unmodified eutectic silicon in aluminium-silicon alloys are summarized and used to support the theory that sodium modification is due to the poisoning of active growth centres. The implications of endogenous growth in unmodified aluminium-silicon sand castings are explored and mechanisms are proposed for the flake-fibre transition in chill-modified and sodium-modified alloys.

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Author notes

  1. K. F. Kobayashi

    Present address: Department of Metal Science and Technology, Kyoto University, Sakyo-ku, 606, Kyoto, Japan

Authors and Affiliations

  1. Department of Mining and Metallurgical Engineering, University of Queensland, 4067, St Lucia, Queensland, Australia

    K. F. Kobayashi & L. M. Hogan

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  1. K. F. Kobayashi
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  2. L. M. Hogan
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Kobayashi, K.F., Hogan, L.M. The crystal growth of silicon in Al-Si alloys. J Mater Sci 20, 1961–1975 (1985). https://doi.org/10.1007/BF01112278

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  • DOI: https://doi.org/10.1007/BF01112278

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