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Primary dendrite growth kinetics and rapid solidification mechanism of highly undercooled Ti-Al alloysZ.C.Luo,H.P.WangDepartment of Applied Physics, Northwestern Polytechnical University摘 要:dendrite growth......
Recently developed strategies to restrain dendrite growth of Li metal anodes for rechargeable batteriesKai-Chao Pu1,Xin Zhang1,Xiao-Lei Qu1,Jian-Jiang Hu2,Hai-Wen Li3,Ming-Xia Gao1,Hong-Ge Pan1,Yong... of 3860 mAh·g-1 along with its low electrochemical potential of-3.04 V.Unfortunately,uncontrollable Li dendrite growth and repetitive destruction/formation of the solid electrolyte interphase layer......
Simulation of fluctuation effect on dendrite growth by phase field method LIU Xin-mei(刘新妹), HAN Yan(韩 焱) Key Laboratory of Instrumentation Science and Measurement, Ministry...; Abstract: The dendrite growth process was simulated with the phase field model coupling with the fluctuation......
Simulation of facet dendrite growth with strong interfacial energy anisotropy by phase field methodYUAN Xun-feng(袁训锋)1, 2, LIU Bao-ying(刘宝盈)1, LI Chun(李春)2, ZHOU Chun-sheng(周春生)2, DING Yu-tian(丁雨田)3... of the facet dendrites increases linearly. The facet dendrite growth has controlled diffusion and kinetics.Key words:phase field; facet dendrite; hcp materials; interfacial energy anisotropy......
initial solute compositions and melt temperatures were chosen. And in the non-isothermal one, release of latent heat during solidification was considered. Realistic growth patterns of dendrite are derived... structure of dendrite and a lower interfacial composition. Key words: phase-field method; simulation; dendritic growth CLC number: TG248; TG244 Document code: A 1 INTRODUCTION The formation......
镍基双晶高温合金定向凝固过程中的竞争生长卢琦1,李金国1,金涛1,周亦胄1,孙晓峰1,胡壮麒1(1.辽宁省沈阳市科学院金属研究所)摘 要:研究了镍基双晶高温合金定向凝固过程中的竞争生长.实验结果表明:当原始籽晶一次枝晶方向均平行于热流方向且二次枝晶取向不同时,定向凝固过程中双晶共存,但双晶的界面存在波动,抽拉速率对其影响不大.当原始籽晶一次枝晶([001])异面并保持其中一组二次枝晶取向([010])相同时,双晶竞争生长过程是一个三维竞争生长过程.晶粒竞争生长从3个方向同时进行,择优取向晶粒通过螺旋状生长方式淘......
and the upper limit indicates the cellular to columnar dendrite transition. The microstructures of the alloys solidified from 30 μm/s to growth rates less than 500 μm/s were mainly composed of columnar... to increase the electrochemical properties of the alloy to be used as an Al-sacrificial anode. Key words: aluminum alloy; unidirectional solidification; growth rate; solute distribution; dendrite......
板坯连铸凝固过程微观组织参数的模拟研究郭薇1,2,张立峰1,朱苗勇1(1.美国密苏里罗拉密苏里科技大学材料科学与工程系2.辽宁省沈阳市东北大学材料与冶金学院)摘 要:通过数学模型研究了在不同的凝固条件下中碳钢和300系列奥氏体不锈钢在凝固过程中的微观组织参数的变化关系,对枝晶生长速率,枝晶半径,二次枝晶臂间距,枝晶尖端温度,温度梯度等参数随坯壳生长的变化以及不同参数的改变对上述微观参数的影响进行了研究,并对两种钢种的微观组织参数进行了比较.结果表明由于不锈钢所具有的特殊组分和凝固特性使得其微观参数均比碳钢小,符......
文献标志码:A Dendrite growth behavior of DZ417G superalloy under longitudinal magnetic field LI Xu, REN Zhong-ming, REN Wei-li, LI Xi, ZHONG Yun-bo, DENG Kang, DONG Jian-wen, CHEN... at different growing rates was investigated. The results show that the magnetic field (<0.1 T) can affect significantly the regular dendrite growth and primary dendrite arm spacing of DZ417G......
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