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[1]卢 勇*,崔媛媛,王翠萍,等.三元调幅分解型合金扩散偶中界面片层组织的相场模拟[J].厦门大学学报(自然科学版),2018,57(04):477-483.[doi:10.6043/j.issn.0438-0479.201802010]
 LU Yong*,CUI Yuanyuan,WANG Cuiping,et al.Phase-field Simulation of Interfacial Layered Structures of Diffusion Couples with Spinodal Decomposition in Ternary Alloys[J].Journal of Xiamen University(Natural Science),2018,57(04):477-483.[doi:10.6043/j.issn.0438-0479.201802010]
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《厦门大学学报(自然科学版)》[ISSN:0438-0479/CN:35-1070/N]

卷:
57卷
期数:
2018年04期
页码:
477-483
栏目:
研究论文
出版日期:
2018-07-31

文章信息/Info

Title:
Phase-field Simulation of Interfacial Layered Structures of Diffusion Couples with Spinodal Decomposition in Ternary Alloys
文章编号:
0438-0479(2018)04-0477-07
作者:
卢 勇*崔媛媛王翠萍刘兴军
厦门大学材料学院,福建 厦门 361005
Author(s):
LU Yong*CUI YuanyuanWANG CuipingLIU Xingjun
College of Materials,Xiamen University,Xiamen 361005,China
关键词:
调幅分解 浓度起伏 片层组织 界面 原子迁移率
Keywords:
spinodal decomposition concentration fluctuations layered structure interface atomic mobility
分类号:
TG 113.12
DOI:
10.6043/j.issn.0438-0479.201802010
文献标志码:
A
摘要:
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.
Abstract:
The phase-field kinetic method was used to study the periodical layered structures formed at the interface of the diffusion couples with spinodal decomposition in ternary alloys.The effects of initial concentration fluctuations,initial concentration difference at the interface and atomic mobilities on the evolution of interfacial structure were systematically investigated.The results indicated that the discontinuity of the chemical potential at the interface,caused by the sharp change in the concentration at the interface,lead to periodical layered structures with alternating phases formed near the interface of the diffusion couple.The number of the periodical layered structures increased with a decrease in the initial concentration fluctuations.The initial concentration difference at the interface and atomic mobilities of the elements had little effect on the number of the periodical layered structures,but had great influence on the formation time and coarsening process of the periodical layered structures.

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备注/Memo

备注/Memo:
收稿日期:2018-02-13 录用日期:2018-04-25
基金项目:国家重点研发计划(2017YFB0702401); 中央高校基本科研业务费专项(20720170038,20720170048)
*通信作者:luyong@xmu.edu.cn
引文格式:卢勇,崔媛媛,王翠萍,等.三元调幅分解型合金扩散偶中界面片层组织的相场模拟[J].厦门大学学报(自然科学版),2018,57(4):477-483.
Citation:LU Y,CUI Y Y,WANG C P,et al.Phase-field simulation of interfacial layered structures of diffusion couples with spinodal decomposition in ternary alloys[J].J Xiamen Univ Nat Sci,2018,57(4):477-483.(in Chinese)
更新日期/Last Update: 1900-01-01