Monte carlo model in metal recrystallization simulation |
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Authors: | Ji-xiang Zhang Hui Wen Yun-teng Liu |
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Institution: | 1.College of Mechanical-Electronic and Automobile Engineering,Chongqing Jiaotong University,Chongqing,China;2.New Material Institute,Shandong Academy of Sciences,Jinan,China |
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Abstract: | Some new advices are proposed for Monte Carlo model of recrystallization annealing simulation, including an additional recovery
process, a new stored energy distribution, a more advanced nucleation model and a conversion probability of site orientation.
Then a Monte Carlo model is established absorbing the above improvements, and used to isothermal annealing simulation of 1060
pure aluminum cold-rolled sheet. For contrast, a recrystallization annealing experiment of 1060 pure aluminum is carried out
at the same time. The results show that the 1060 aluminum alloy in the annealing experiment produces obvious recrystallization,
and the grain morphology of recrystallization is similar to isometric. The new model can effectively simulate the nonhomogeneous
nucleation process and the microstructure evolution of 1060 industrial pure aluminum in annealing, and the simulated recrystallization
kinetics curve is similar to the theoretical curve. The Avrami exponent coincides with the experimental result but is lower
than the theoretical value of 2. As the Monte Carlo model does not consider the preferential growth orientation, some simulated
results are not completely consistent with that from experiments. |
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Keywords: | |
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