Convective effect on the solidification of hypermonotectic alloys

作者: Haili Li , Jiuzhou Zhao , None

DOI: 10.1557/JMR.2011.19

关键词:

摘要: A model is developed to analyze the microstructure evolution in a continuously solidified hypermonotectic alloy. The takes into account common actions of nucleation and diffusional growth/shrinkage minority phase droplets, spatial segregation, convections melt. formation alloy calculated. numerical results demonstrate that have great effect on formation. convective flow against solidification direction causes an increase rate while along decrease droplets. lead more nonuniform distribution droplets It size largest obtaining alloys with well-dispersed microstructure.

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