About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Computational Thermodynamics and Kinetics
|
Presentation Title |
O-15: Structural Ordering and Dynamics of Cu-Ag Chemically Heterogeneous Solid-liquid Interface |
Author(s) |
Boqiang Wu |
On-Site Speaker (Planned) |
Boqiang Wu |
Abstract Scope |
The structural ordering and dynamics of chemically heterogeneous solid-liquid interfaces (SLI) between the Cu-Ag eutectic melts and pure Cu (Ag) are studied by performing molecular dynamics simulations. The microstructure of the liquid phase adjacent to the solid matrix tends to be ordered, and the properties of SLI are anisotropic due to the orientation dependence of the SLI width (ω110 > ω100 > ω111). In-plane and out-plane order of the interfacial atomic layers should be considered comprehensively to learn the orientation dependence of SLI, rather than only the atomic number density distribution perpendicular to the interface. The region of SLI is considered as a mixture of liquid and solid atoms according to the Lindemann criterion. Besides, the dynamics of SLI not only depend on the orientation, but also related to the type of matrix. Our findings are believed to be helpful for understanding the SLI and crystal growth of Cu-Ag alloys. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Modeling and Simulation, |