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Three-dimensional cellular automaton models of microstructural evolution during solidification

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Abstract

The evolution of microstructural features during solidification involves complex interactions between several physical phenomena. Cellular automata (CA) models are often characterized as being simple in their construction and yet able to produce very complicated behaviour. This property of CA models has been exploited to produce computer simulations of various aspects of microstructural evolution occurring during solidification. Results of a series of three-dimensional simulations of non-isothermal “free” dendritic growth are presented and the changes in dendrite morphology for different conditions are quantified and discussed. A modification of this model was also developed to examine the effects of composition on microstructural evolution for a simple eutectic system. As the composition moves towards the eutectic the simulated microstructures change from combined dendritic/lamellar to completely lamellar.

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Authors and Affiliations

  1. Materials Engineering, University College Swansea, SA2 8PP, Singleton Park, Swansea, UK

    S. G. R. Brown & N. B. Bruce

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  1. S. G. R. Brown
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  2. N. B. Bruce
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Brown, S.G.R., Bruce, N.B. Three-dimensional cellular automaton models of microstructural evolution during solidification. JOURNAL OF MATERIALS SCIENCE 30, 1144–1150 (1995). https://doi.org/10.1007/BF00356112

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