A simulation study of rapid solidification and crystal configuration of Cu70Ni30 alloy

作者：Zheng, CX^*; Liu, RS; Zhou, QY; Tian, Z; Wang, X; Li, Q

来源：Science in China - Series G: Physics Mechanics and Astronomy , 2005, 48(6): 687-694.

DOI：10.1360/04yw0196

• quantum Sutton-Chen potentials
• molecular dynamics simulation
• Cu70Ni30 alloy
• rapid solidification

A molecular dynamics (MD) simulation study has been performed for the rapid solidification of Cu70Ni30 adopting the quantum Sutton-Chen many-body potentials. By analyzing the bond-types and the relation of atomic average energy versus temperature, it was demonstrated that as cooling rate being 2x10(12) K/s, the Cu70Ni30 formed fcc crystal structures and freezing point was found. In addition, having analyzed the transformation of microstructures and the detail of crystal growth by using atomic trace and visual method, not only could the formation of binary disordered solid solution be showed, but also the solidification of liquid metals and the crystal growth processes could be further understood.

• 出版日期2005-12
• 单位湖南大学