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, ZHAO Y H, CHENG J. Numerical simulation for dendrite growth of binary alloy with phase-field method[J]. J Mater Sci Technology, 2004, 20(12): 45-48. [4] HOU H, ZHAO Y H, CHU Z, XU H. Numerical... to carry out and simulation results are often unsatisfied. 2 Solution algorithm method for velocity and pressure field Mass conservation and momentum conservation are represented by the continuum equation......
Institute of Technology, 2005 [2] Hou H, Ju D Y, Zhao Y H, Cheng J. Numerical simulationfor dendrite growth of binary alloy with phase-field method[J]. J Mater Sci Technology, 2004, 20(12): 45-48. [3... Modeling simulation and experimental validation for mold filling process HOU Hua (侯 华) 1, JU Dong-ying(巨东英) 2, MAO Hong-kui(毛红奎) 1, D. SAITO 2 1. College of Materials Science and Technology......
base alloy and the interatomic potential calculation by microscopic phase-field simulation[D]. Taiyuan: North University of China, 2017. [4] YANG Kun, CHEN Zheng, WANG Yong-xin, FAN Xiao-li. Microscopic.... Simulation of pre-precipitation in Ni75Al14Mo11 alloy by microscopic phase-field model[J]. Transactions of Nonferrous Metals Society of China, 2015, 25(7): 2361-2366. [15] 徐 聪, 陈 铮, 卢艳丽, 钟汉文, 张 静, 苗海川. 微观相场法......
Trans. Nonferrous Met. Soc. China 25(2015) 2361-2366 Simulation of pre-precipitation in Ni75Al14Mo11 alloy by microscopic phase-field model Jing-jing LIANG, Rui-qin LI, Yao-Hong ZHAO School...-centered cubic lattice and the Al atoms occupy the face-centered points [1,2]. Phase-field simulation has been widely used to investigate the phenomenon in material science. For instance, CHEN et al [3] used......
粒逐渐聚结为1个椭圆形颗粒,晶界消失,最后在稳态时接近1个圆形颗粒,且颗粒位置靠近高温端. 图3 直径20 μm的YSZ颗粒在温度梯度10 K/μm下的非等温烧结的相场模拟 Fig. 3 Phase-field simulation of non-isothermal sintering of YSZ particles with diameter of 20 μm at temperature...形貌与实验结果的对比,可以发现两者之间高度吻合,表明了该相场模型的有效性. 图4 316L不锈钢粉末选区激光烧结的相场模拟 Fig. 4 Phase-field simulation of selective laser sintering of 316L stainless steel powder 基于大量计算结果的统计,得出激光功率P和扫描速度v对选区激光烧结微结构特征的影响,如图5所示......
; Abstract: Numerical simulation based on phase field method was performed to describe the solidification of silicon. The effect of anisotropy, undercooling and coupling parameter on dendrite growth shape... be the physical value of material, but anisotropy in the range of 0.07-0.35 was studied to obtain some law in phase field simulation. The interface shapes of dendrite growth for various γ at Δ=-0.25, t......
Phase field simulation of dendrite growth under convectionYutian DING,Xunfeng YUAN,Tingbiao GUO and Yong HU State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials,Lanzhou University of Technology,Lanzhou 730050,China摘 要:The phase-field model coupled with a flow field was used to simulate the solidification of pure materials by the finite......
Trans. Nonferrous Met. Soc. China 23(2013) 193-200 Microscopic phase-field study on directional coarsening mechanism caused by interaction between precipitates in Ni-Al-V alloy Kun YANG, Zheng CHEN...: A microscopic phase-field model was used to investigate a directional coarsening mechanism caused by the anisotropic growth of long period stacking and different effects of phases on precipitation in Ni......
冷度较小时,晶体平衡形貌为类矩形;随着无量纲热过冷度的增加,晶体平衡形貌向枝晶转变,枝晶尖端生长速度先呈幂指数增加,然后呈线性增加,枝晶生长由扩散控制转变为动力学控制. 关键词:Ni-Cu合金;界面能;各向异性强度;过冷度;相场法;枝晶生长 中图分类号:TG146 文献标志码:A Phase-field simulation...异性下γ=0.1,Ωt =0.1时的枝晶生长模拟结果 Fig.1 Simulation results of dendrite growth under anisotropy of strong interface energy at γ=0.1 and Ωt =0.1: (a) Phase field; (b) Temperature field; (c) Solute field......
strain was investi-gated using the microscopic phase-field model. The simulation results indicate that the shape transition and spatial correla-tion of L12 and D022 are caused by the morphological...Simulation of the coarsening behavior of intermetallic precipitates in Ni75AlxV25-x alloysLI Yongsheng,CHEN Zheng,WANG Yongxin,LU Yanli,and ZHANG Jianjun State Key Laboratory of Solidification......