Some Monte Carlo studies of grain growth in a temperature gradient
Some Monte Carlo studies of grain growth in a temperature gradient
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DOI：
10.1080/01418619508243797
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发表时间：
1995-09
影响因子：
1.6
通讯作者：
A. Godfrey;John W. Martin
中科院分区：
文献类型：
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作者：
A. Godfrey;John W. Martin
开发了蒙特卡罗方法，旨在模拟温度梯度下二次再结晶过程中具有强晶体织构的定向微观结构的发展。首先开发了一个允许各向异性迁移的等温模型，并根据之前报道的类似研究的数据对结果进行了测试。然后将该模型扩展到包括温度梯度存在下的晶粒生长。从理论上考虑了在各向同性边界迁移率条件下存在这种温度梯度的影响，并且在这些条件下运行的模拟结果与该分析的预测一致。通过在温度梯度曲线中引入时间依赖性来实现区域退火过程的模拟，这使得生成的微观结构接近于实践中观察到的微观结构。
A Monte Carlo method has been developed with the aim of simulating the development of a directional microstructure with strong crystallographic texture during secondary recrystallization in a temperature gradient. An isothermal model that also allowed for anisotropic mobility was first developed, and the results tested against data from similar previously reported studies. The model was then extended to include grain growth in the presence of a temperature gradient. The effect of the presence of such a temperature gradient under conditions of isotropic boundary mobility was considered theoretically, and results of simulations run under these conditions were shown to be consistent with the predictions from this analysis. The simulation of the zone annealing process was achieved by introducing a time dependence into the temperature gradient profile, which allowed the generation of microstructures approaching those observed in practice.