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多晶固体材料显微结构的演化与诸多因素密切相关 ,是一复杂的过程。运用适当的计算机模拟方法进行模拟 ,实现对晶粒生长的预测 ,可为材料研究提供新的方法和重要依据。此文以晶粒生长动力学为基础 ,建立晶粒生长模型 ;分析了晶粒生长过程的计算机模拟理论和方法 ;以MonteCarlo方法为基础 ,提出快速Q statepotts算法 ,简化计算量 ,在PC机上编程实现了正常晶粒生长过程的计算机模拟。得到的显微结构图逼真度较好。通过对结果进行分析处理 ,得到的生长因子为 0 .4 7。
The evolution of the microstructure of polycrystalline solid materials is closely related to many factors and is a complicated process. Using appropriate computer simulation methods to simulate the grain growth prediction can provide a new method for material research and an important basis. Based on the grain growth kinetics, a grain growth model was established. The theory and method of computer simulation of grain growth were analyzed. Based on the Monte Carlo method, a fast Q statepotts algorithm was proposed to simplify the computation and to program on a PC Computer simulation of normal grain growth is achieved. The resulting microstructure is fidelity. Through the analysis of the results, the growth factor obtained was 0.4.