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三元调幅分解型合金扩散偶中界面片层组织的相场模拟
Authors
刘兴军
卢勇
崔媛媛
王翠萍
Publication date
2 May 2018
Publisher
Abstract
采用相场动力学方法,研究了三元调幅分解型合金扩散偶中的浓度起伏、界面初始浓度差和组元原子迁移率对界面组织演化的影响.研究结果表明,由于扩散偶界面处浓度的突变引起化学势在扩散偶界面处的不连续变化,从而在扩散偶界面附近形成了两相交替排列的周期性片层组织,这种周期性片层组织的片层数随着初始浓度起伏的减小而增加.界面初始浓度差和组元原子迁移率对周期性片层组织的片层数影响较小,但对片层组织的形成时间和粗化过程影响较大.国家重点研发计划(2017YFB0702401);;中央高校基本科研业务费专项(20720170038,20720170048
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Last time updated on 10/06/2020