【摘 要】
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1.IntroductionrnDendritic structure are commonly encountered during solidification [1-4], especially in systems freezing with relatively low entropies of transf
【机 构】
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Institute of Materials Science and Engineering,Lanzhou University, Lanzhou 730000, China;School of P
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1.IntroductionrnDendritic structure are commonly encountered during solidification [1-4], especially in systems freezing with relatively low entropies of transformation [1,5].Generally speaking, the dendritic structure is composed of primary dendrite stem, secondary branch and even tertiary and higher order dendrite arms [1].Different kinds of models have been proposed for describing the growth of primary dendrite [1-5] and secondary dendrite arms [1,6,7].In recent decades, dendritic growth of many industrial important peritectic alloys featured by peritectic reaction L+α→β have been witnessed [8-10].The dendritic growth is more complex during peritectic solidification due to the involvement of peritectic β phase.
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