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Phase field modeling of dendrite growth Chengzhi WANG1,Yiyi LI2,Yutuo ZHANG1,Dianzhong LI2 (1.Shenyang Ligong University,Shenyang 110168,China;2.Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China) Abstract:Single dendrite and multi-dendrite growth for A1-2 mol pct Si alloy during isothermal solidification are simulated by phase field method. In the case of single......
Effect of nonlinear liquidus and solidus on dendrite growth in bulk undercooled melts CHEN Zheng(陈 正), WANG Hai-feng(王海丰), LIU Feng(刘 峰), YANG Wei(杨 伟) State Key Laboratory of Solidification...; Abstract: On the base of nonlinear liquidus and solidus, an extended model for dendrite growth in bulk......
Effects of RE and Sr additions on dendrite growth and phase precipitation in AZ91D magnesium alloy ZHOU Ji-xue(周吉学), WANG Jie(王 杰), WANG Jing(王 晶), YANG Yuan-sheng(杨院生) Institute of Metal... of rare earth (RE), Sr and RE + Sr on the dendrite growth and phase precipitation in AZ91D magnesium alloy were studied, respectively. The results show that the microstructure is refined......
Numerical simulation of facet dendrite growth CHEN Zhi(陈 志)1, CHEN Chang-le(陈长乐)1, HAO Li-mei(郝丽梅)2 1. Department of Applied Physics, Shannxi Key Laboratory of Condensed Matter Structures...; 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......
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process. With the growth of the dendrite, the dendrite tips begin to impinge upon their neighbors (Fig.1), so that the solid in the mushy zone like a skeleton throughout the solidifying area..., modifier and other parameters are shown in Table 2. The optimized contents of titanium and strontium were 0.1% and 0.01% according to the Refs.[11-12]. Fig.1 Instant of collision in dendrite growth......
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... difference method.The effects of initial crystal radius,the space step and the interface thickness on the dendrite growth were studied.Results indicate that the grain grows into an equiaxial dendrite......
Rapid Dendrite Growth in Solidification of Highly Undercooled Alloys安红恩1,2,YANG Shaopei1,21. College of Mechanical and Electronic Engineering, Huanghe Jiaotong University2. Henan Engineering... nonequilibrium dendrite growth model to describe rapid solidification process of deeply undercooled alloys.Evolution of the key fundamental solidification parameters was also evaluated.关键词:......
that primary dendrite spacing is decreased with the decrease of the sample diameter at given growth rate. By regressing the relationship between primary dendrite arm spacing and the growth rate, the primary dendrite arm spacing complies with 461.76v-0.53, 417.92v-0.28 and 415.83v-0.25 for the sample diameter of 1.8, 3.5 and 7.2 mm, respectively. The primary dendrite spacing, growth rate and thermal......