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  • Modeling of semisolid structure formation in controlled nucleation method

    Author(s)
    Yao, X
    Wang, H
    Griffith University Author(s)
    Yao, Xiangdong
    Year published
    2006
    Metadata
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    Abstract
    Modeling the semisolid structure formation is of significance in both understanding the mechanisms of the formation of such structure and optimization of the solidification conditions for the required structure. A modified cellular automaton (mCA) model has been developed, which is coupled with macroscopic models for heat transfer calculation and microscopic models for nucleation and grain growth. The mCA model is applied to Al-Si alloys, one of the most widely used semisolid alloys. It predicts microstructure morphology and grain size during semi-solid solidification, and determines the effects of poring temperature and ...
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    Modeling the semisolid structure formation is of significance in both understanding the mechanisms of the formation of such structure and optimization of the solidification conditions for the required structure. A modified cellular automaton (mCA) model has been developed, which is coupled with macroscopic models for heat transfer calculation and microscopic models for nucleation and grain growth. The mCA model is applied to Al-Si alloys, one of the most widely used semisolid alloys. It predicts microstructure morphology and grain size during semi-solid solidification, and determines the effects of poring temperature and mould temperature on the final microstructure. The simulated results are compared with those obtained experimentally. The resulting simulations give some insight into the mechanisms about the semisolid structure formation in Controlled Nucleation process.
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    Journal Title
    International Journal of Modern Physics B
    Volume
    20
    Issue
    25-27
    DOI
    https://doi.org/10.1142/S0217979206040969
    Subject
    Mathematical sciences
    Physical sciences
    Solid state chemistry
    Physical properties of materials
    Publication URI
    http://hdl.handle.net/10072/56974
    Collection
    • Journal articles

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