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A mathematical model for prediction of microporosity in aluminum alloy A356

Bahmani, A ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1007/s00170-012-4102-7
  3. Publisher: 2013
  4. Abstract:
  5. 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
  6. Keywords:
  7. Gas segregation ; Modeling ; A-356 aluminum alloy ; Aluminum alloy a356 ; Cast part ; Conservation equations ; Cooling rates ; Darcy's equations ; Dendrite arm spacing ; Experimental datum ; Gas content ; Mushy zone ; Simulation ; Computer simulation ; Forecasting ; Mathematical models ; Models ; Microporosity
  8. Source: International Journal of Advanced Manufacturing Technology ; Volume 64, Issue 9-12 , April , 2013 , Pages 1313-1321 ; 02683768 (ISSN)
  9. URL: http://link.springer.com/article/10.1007%2Fs00170-012-4102-7