A new approach to incorporating the effect of nano-sized dispersoids on recrystallization inhibition into Monte Carlo simulation

作者：Eivani A R^*; Zhou J; Duszczyk J

来源：Computational Materials Science, 2012, 54: 370-377.

DOI：10.1016/j.commatsci.2011.10.016

• Aluminum
• Recrystallization
• Modeling
• Monte Carlo technique
• Nano-sized dispersoids

In this research, a new approach to incorporating the effect of nano-sized dispersoids on recrystallization was developed as a combination of physical modeling and Monte Carlo simulation. The energy stored during preceding deformation and the nucleation rate at the onset and during recrystallization were calculated using a physical model and were incorporated into the Monte Carlo simulation. The conventional approach to incorporating the Zener drag effect was also considered for comparison with the new approach. Predictions were validated by comparing the microstructures obtained from the simulations with those from experimental results. It was found that the general Monte Carlo approach to incorporating the effect of second-phase particles on recrystallization inhibition was not suitable for nano-sized dispersoids being significantly smaller than the lattice size of the simulation. The effect of dispersoids could be incorporated into the simulation using a combination of analytical modeling and Monte Carlo approach. By using this approach, it was possible to differentiate between small variations in the volume fraction of dispersoids.

• 出版日期2012-3