The equilibrium crystallisation process of non-crystalline Cu₃Au

ABSTRACT

The equilibrium crystallisation of non-crystalline Cu₃Au has been studied by molecular dynamics method. The results of structure analysis show that the crystallisation kinetics of non-crystalline Cu₃Au in the isothermal process is in agreement with the Avrami equation in the temperature range between 400 and 850 K. The time–temperature transformation diagram of crystallisation process presents a typical C-curve with nose temperature about 650 K. In the crystallisation process, there are also many metastable clusters produced in the disordered structure. The metastable polyhedron structure can promote the nucleation and growth process of crystal.

KEYWORDS:

• Molecular dynamics (MD)
• equilibrium
• Cu₃Au
• non-crystalline
• time-temperature-transformation

Acknowledgements

This study was financially supported by the National Natural Science Foundation of China [Grant numbers 51575129 and 51505101].

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This study was financially supported by the National Natural Science Foundation of China [Grant numbers 51575129 and 51505101].