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Molecular Dynamics Study of Cooling Rate and Pressure Effects on Phase Transformation of CuNi Alloy

Chao Zheng
Department of Materials Science & Engineering, University of Tennessee

This page shows visualizations of the CuNi alloys during the crystallization process.

The process of CuNi alloy cooling from high temperature (liquid phase) is accompanied by the phase transition process from amorphous state to crystalline state. The faster the cooling rate, the lower the degree of crystallization. When the cooling rate exceeds a certain range, an amorphous solid will be formed directly. The external pressure itself has a certain positive effect on the formation of crystals and has a certain influence on the type of crystal formation. The greater the external pressure, the greater the proportion of FCC crystals in the formed crystal and the smaller the proportion of HCP crystals. Moreover, HCP crystals are often interspersed in FCC crystals with a layer structure.

Interactive Structures

Color Legend:

  • Brown = Copper (Cu)
  • Green = Nickel (Ni)


1. Kazanc S. Molecular dynamics study of pressure effect on crystallization behaviour of amorphous CuNi alloy during isothermal annealing[J]. Physics Letters A, 2007, 365(5-6): 473-477

posted: April, 2020.
updated: April, 2020.