The equilibrium crystallisation process of non-crystalline Cu3Au

摘要

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.