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A mathematical model for prediction of microporosity in aluminum alloy A356

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Abstract

In the present work, a mathematical model was developed based on finite difference method to predict the microporosity distribution in A356 aluminum alloy casting. Heat, mass, and gas conservation equations were solved in this model. Moreover, Darcy’s equation was considered in the mushy zone. Results show that the distribution and concentration of microporosities in cast parts vary with both cooling rate and initial gas content. Simulation results were compared with experimental data where proportionally good agreement with experimental results was found. Finally, a complex cast part was simulated presenting the ability of the model to predict the porosities in industrial cast parts.

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Authors and Affiliations

  1. Department of Materials Engineering, Sharif University of Technology, Tehran, Iran

    Ahmad Bahmani, Naser Varahram & Parviz Davami

  2. Razi Metallurgical Research Center, Tehran, Iran

    Nader Hatami

  3. Materials and Energy Research Center (MERC), Tehran, Iran

    Mohsen Ostad Shabani

Authors
  1. Ahmad Bahmani
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  2. Nader Hatami
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  3. Naser Varahram
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  4. Parviz Davami
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  5. Mohsen Ostad Shabani
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Correspondence to Ahmad Bahmani.

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Bahmani, A., Hatami, N., Varahram, N. et al. A mathematical model for prediction of microporosity in aluminum alloy A356. Int J Adv Manuf Technol 64, 1313–1321 (2013). https://doi.org/10.1007/s00170-012-4102-7

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  • DOI: https://doi.org/10.1007/s00170-012-4102-7

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