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Simulation of interphase boundary of Ni75AlxV25-x alloys using microscopic phase-field method LI Yong-sheng(李永胜), CHEN Zheng(陈 铮), LU Yan-li(卢艳丽),WANG Yong-xin(王永欣) Department of Materials...; Abstract: The evolution of ordered interphase boundary (IPB) of Ni75AlxV25-x alloys was simulated using the microscopic phase-field method. Based on the atomic occupation probability......
互抵消. 关键词:晶界;位错;湮没;分解;晶体相场模型 中图分类号:TF80 文献标志码:A Phase field crystal... were simulated by using the phase-field crystal model. The dislocation reaction of separation, annihilation and mergence and these mechanisms were analyzed from the energy point of view......
Trans. Nonferrous Met. Soc. China 25(2015) 241-248 Phase-field modeling of dendritic growth under forced flow based on adaptive finite element method Chang-sheng ZHU1,2, Peng LEI1, Rong-zhen XIAO2..., Lanzhou University of Technology, Lanzhou 730050, China Received 24 February 2014; accepted 26 June 2014 Abstract: A mathematical model combined projection algorithm with phase-field method was applied......
域的广泛应用,发展出许多凝固微观组织的数值模拟方法.其中相场法[4](Phase field method)由于可以对凝固过程微观组织的演化进行更为贴近真实数据的模拟,已成为预测凝固微观组织的重要手段[5-7].以Ginzburg-Landau理论为物理基础[8],通过微分方程来体现具有特定物理机制的扩散,有序化势和热力学驱动的综合作用[9],再通过计算机编程求解上述方程,从而获枝晶的凝固微观形貌... for a binary alloy using phase-field approach[J]. Acta Physica Sinica, 2006, 55(3): 1502-1507. [2] 刘明翔, 王 开, 夏 丹, 蒋 涛, 朱子宗. Al-Si二元合金微观偏析的相场法模拟[J]. 材料热处理学报, 2014, 35(3): 213-217. LIU Ming-xiang, WANG Kai......
:A Numerical simulation of multiple grains with different preferred growth orientation of magnesium alloys using phase-field method YAO Jun-ping1, 2, LI Xiang-guang1, LONG Wen-yuan1, ZHANG Lei1 (1. National..., Columbus, OH 43210, USA) Abstract: Based on the KKS model which couples concentration field, flow field, orientation field and temperature field, the phase-field model for magnesium alloys with hcp......
of primary (Al) phase in Al356.1 alloy was investigated by means of the phase-field simulation using two sets of diffusion coefficients in liquid phase, while fixing other thermophysical and numerical... evolution during solidification. Key words: Al356.1 alloy; solidification; microstructure evolution; diffusion coefficient; phase-field simulation 1 Introduction Quantitative description......
相场方法研究Al-Ag合金γ相周围溶质析出过程高英俊1,2,罗志荣3,张少义3,黄创高3(1.广西壮族自治区南宁市广西大学物理科学与技术学院2.辽宁省沈阳市科学院国际材料物理中心3.广西大学 物理科学与工程技术学院)摘 要:针对Al-Ag合金溶质的Spinodal亚稳互溶隙曲线的特点,考虑溶质场与析出相的相互作用,通过构造时效温度和溶质浓度相关联的局域相互作用自由能密度函数,建立了低Ag溶质的Al-Ag合金析出过程的相场模型.模拟了Ag溶质浓度分别为4.2%和22%的体系中溶质场的Spinodal分解和析出Gu......
and numerical results obtained via phase-field model Alexandre F. FERREIRA1, Ivaldo L. FERREIRA2, Rangel P. ALMEIDA1, Jose A. CASTRO1, Roberto C. SALES1, Zilmar A. JUNIOR1 1. Graduate Program... July 2020; accepted 2 March 2021 Abstract: The objective of the work is focused on predictions of microsegregation, solidification speed, dendritic arm spacings and dendrite morphology by phase-field......
Trans. Nonferrous Met. Soc. China 31(2021) 1175-1188 Phase-field crystal simulation of evolution of liquid pools in grain boundary pre-melting regions Xiao-lin TIAN, Yu-hong ZHAO, Dun-wei PENG, Qing... is a phenomenon that below the melting point the liquid-like structure appears at the grain- boundary while the grain interior remains a crystal structure. The phase-field crystal method was employed......
Trans. Nonferrous Met. Soc. China 26(2016) 1073-1078 Quantitative calculation on atomic site occupation during precipitation of Ni3(Al1-xFex) by microscopic phase-field study Hai-hong LIAO, Min-jie LIANG, Pei-kang BAI School of Materials Science and Engineering, North University of China, Taiyuan 030051, China Received 8 December 2015; accepted 26 February 2016 Abstract: Microscopic phase-field......