The nanocrystallization behaviour of Zr$_{70}$Cu$_{20}$Ni$_{10}$ metallic
glass during isothermal annealing is studied by employing a Monte Carlo
simulation incorporating with a modified Ising model and a $Q$-state Potts
model. Based on the simulated microstructure and differential scanning
calorimetry curves, we find that the low crystal-amorphous interface energy
of Ni plays an important role in the nanocrystallization of primary
Zr$_{2}$Ni. It is found that when $T
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