Phase field simulation of interdiffusion and microstructure of Cu-Ni diffusion couples

摘要：

The atomic migration and microstructure evolution of interdiffusion in Cu-Ni diffusion couples were investigated using the phase field model. The Ni atoms migrate from high concentration to low concentration regions in α1(Cu-rich)/α1+α2(Ni-rich) or α2/α1+α2 diffusion couples, and the concentration gradient dominates the diffusion direction. However, the Ni atoms migrate from low concentration to high concentration regions in α1+α2/α1+α2 diffusion couple, and the chemical potential gradient dominates the atoms diffusion direction. The bigger the concentration difference between the diffusion couples, the stronger the interdiffusion and interface movement.

作者: Yongsheng Li Yanzhou Yu Guang Chen

作者单位: Engineering Research Center of Behavior and Design of Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China

会议类型: 国际会议

会议名称: The 6th International Conference on Physical and Numerical Simulation of Materials Processing(第六届材料与热加工物理模拟及数值模拟国际学术会议 ICPNS 2010)

会议地点: 桂林

会议语种:英文

页码: 1-6

在线出版日期: 2010-11-16（万方平台首次上网日期，不代表论文的发表时间）