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Eutectic solidification and its role in casting porosity formation

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Abstract

Understanding and controlling the eutectic solidification process in Al-Si alloys permits prediction of the formation of casting porosity, eventually leading to methods for its control and elimination. In addition, it enables control of eutectic structure, silicon morphology, and eutectic grain size to further improve the alloy properties. This paper presents the current understanding of eutectic solidification in hypoeutectic Al-Si foundry alloys and the relationship between eutectic solidification and porosity formation. New concepts in engineering eutectic solidification are also explored.

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Authors and Affiliations

  1. the Division of Materials Engineering, the University of Queensland, Brisbane, Australia

    L. Lu, K. Nogita, S. D. McDonald (research fellows) & A. K. Dahle (associate professor)

  2. the Cooperative Research Center for Cast Metals Manufacturing, USA

    L. Lu & A. K. Dahle

Authors
  1. L. Lu
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  2. K. Nogita
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  3. S. D. McDonald
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  4. A. K. Dahle
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  5. L. Lu
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  6. A. K. Dahle
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Additional information

For more information, contact L. Lu, The University of Queensland, CRC for Cast Metals Manufacturing, Division of Materials Engineering, Brisbane Qld. 4072, Australia; e-mail l.lu@minmet.uq.edu.au.

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Lu, L., Nogita, K., McDonald, S.D. et al. Eutectic solidification and its role in casting porosity formation. JOM 56, 52–58 (2004). https://doi.org/10.1007/s11837-004-0254-8

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  • DOI: https://doi.org/10.1007/s11837-004-0254-8

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