摘要
1.Introduction Dendritic 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].
基金
financially supported by the National Natural Science Foundation of China(No.51871118)
the 2018 joint Foundation of Ministry of Education for Equipment Pre-research(No.6141A020332)
the Key Research and Development Plan of Gansu Province(No.18YF1GA102)
the Fundamental Research Funds for the Central Universities(No.lzujbky-2019-sp03)
the Fund of Science and Technology Project of Lanzhou City(No.2019-1-30)
the Fund of State Key Laboratory of Special Rare Metal Materials(No.SKL2020K003)。
