晶粒正常生长的Monte Carlo模拟  

Monte Carlo Method for Normal Grain Growth Similation

作　　者：王岗[1] 刘艳[1] 徐宗畅 肖岗[2] 张耀予[1] 谭凯[2] 林一歆[1,2] WANG Gang;LIU Yan;XU Zong-Chang;ZHANG Yao-Yu;XIAO Gang;TAN Kai;LIN Yi-Xin(China-EU Institute for Clean and Renewable Energy, Huazhong University of Science&Technology,Wuhan 430074, China;School of Energy and Power Engineering, Huazhong University of Science&Technology,Wuhan 430074, China)

机构地区：[1]华中科技大学中欧清洁与可再生能源学院,武汉430074 [2]华中科技大学能源与动力工程学院,武汉430074

出　　处：《现代技术陶瓷》2016年第6期434-441,共8页Advanced Ceramics

基　　金：国家自然科学基金(21203069)

摘　　要：本文建立了晶界能各向同性情况下晶粒生长的二维MonteCarlo模型，并对等温情况下的晶粒生长过程进行了模拟。在模拟过程中，对传统MonteCarlo方法中能量与概率统计方法进行了改进。为了更加直观地显示出晶粒生长过程中系统能量的变化，统计了在整个晶粒生长过程中能量的变化趋势，结果与晶粒尺寸变化相符合。模拟得到的晶粒生长指数在0.35~0.45之间，与理论值相符，证明了改进方法的可靠性。A two-dimensional Monte Carlo model for the grain growth in under the isotropic condition was established and used to simulate the normal grain growth process. In the simulation process, some changes in the part of energy calculation and probability statistics in the traditional Monte Carlo method were made. The simulation results confirmed that the energy evolution of the system is corresponding to the grain size change. The obtained grain growth exponent, n = 0.35 ~0.45, is close to its theoretic value, proving the reliability of the improved method.

关 键 词：计算机模拟 晶粒生长 MonteCarlo方法 

分 类 号：TB34[一般工业技术—材料科学与工程]