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Development and validation of a thermal model of the direct chill casting of AZ31 magnesium billets

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Abstract

A mathematical model of the direct chill (DC) casting process for magnesium billets has been developed to predict the temperature in the billet, dummy block, and center pin using the commercial finite-element (FE) package, ABAQUS. Boundary conditions used for primary and secondary cooling and interfacial cooling between the billet and dummy block were defined based on the literature and knowledge of the physical phenomena occurring during the process. Temperatures in the billet, mold, and dummy block, as well as sump depth, were measured for a series of casting conditions during a plant trial conducted at Timminco Metals. The data obtained during the plant trial were used to “fine-tune” and validate the model for a variety of industrial casting conditions.

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Authors and Affiliations

  1. the Department of Materials Engineering, University of British Columbia, V6T 1Z4, Vancouver, BC, Canada

    H. Hao (Postdoctoral Research Fellow), D. M. Maijer (Assistant Professor), M. A. Wells (Assistant Professor) & S. L. Cockcroft (Associate Professor)

  2. Research and Development Division, Timminco Metals, K0J 1Y0, Haley, ON, Canada

    D. Sediako (Senior Research Investigator)

  3. Technology Development & Metallurgical Services Department, Timminco Metals, K0J 1Y0, Haley, ON, Canada

    S. Hibbins (Superintendent)

Authors
  1. H. Hao
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  2. D. M. Maijer
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  3. M. A. Wells
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  4. S. L. Cockcroft
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  5. D. Sediako
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  6. S. Hibbins
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Hao, H., Maijer, D.M., Wells, M.A. et al. Development and validation of a thermal model of the direct chill casting of AZ31 magnesium billets. Metall Mater Trans A 35, 3843–3854 (2004). https://doi.org/10.1007/s11661-004-0290-6

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  • DOI: https://doi.org/10.1007/s11661-004-0290-6

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