Institutional Repository of Coll Mat Sci & Engn
Simulation of atypical dendrite growth in Ni-Cu binary alloy with phase-field method | |
Xiao, Rongzhen![]() ![]() ![]() | |
2012-09-01 | |
会议录名称 | Journal of Computational and Theoretical Nanoscience
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卷号 | 9 |
期号 | 9 |
页码 | 1495-1499 |
出版者 | American Scientific Publishers, 25650 North Lewis Way, Stevenson Ranch, California, 91381-1439, United States |
摘要 | Two dimensional non-facet formations during 〈110〉 dendrites growth of Ni-Cu binary alloy are simulated with a phase-field model. The gradient terms for both phase field and solute field are considered in the model. The finite difference method is adopted with uniform grid, and the C Programming Code is implemented to complete the phase-field simulation. We focus on effect of the interface kinetics coefficient on dendritic morphology, tip operating state and concentration profile across the liquid.solid interface. The simulation results indicate that the symmetry of crystal growth does not depend on the kinetics coefficient without flow. With increasing of kinetics coefficient, the steady-state dendrite tip velocities increase accordingly, and the level of solute trapping is severe. The crystal growth patterns are formed including a sector form and a plate formation, but the symmetry of dendrite morphology is not disrupted. Copyright © 2012 American Scientific Publishers All rights reserved. |
关键词 | Binary alloys Computer simulation Interface states Kinetics Morphology Phase transitions C programming Concentration profiles Dendrite growth Dendrite morphology Dendritic morphology Gradient terms Growth patterns Interface kinetics Operating state Phase field methods Phase fields Phase-field models Phase-field simulation Solute distribution Solute field Solute trapping Tip velocity Uniform grids |
DOI | 10.1166/jctn.2012.2232 |
收录类别 | EI ; SCIE |
语种 | 英语 |
WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
WOS类目 | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
WOS记录号 | WOS:000309495900076 |
EI入藏号 | 20123515375083 |
EI主题词 | Dendrites (metallography) |
ISSN | 15461955 |
来源库 | Compendex |
分类代码 | 951 Materials Science - 933.1.2 Crystal Growth - 932 High Energy Physics; Nuclear Physics; Plasma Physics - 931 Classical Physics; Quantum Theory; Relativity - 801.4 Physical Chemistry - 723.5 Computer Applications - 531.1 Metallurgy |
引用统计 | |
文献类型 | 会议论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/116021 |
专题 | 材料科学与工程学院 计算机与通信学院 省部共建有色金属先进加工与再利用国家重点实验室 |
作者单位 | State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China |
第一作者单位 | 省部共建有色金属先进加工与再利用国家重点实验室 |
推荐引用方式 GB/T 7714 | Xiao, Rongzhen,Wang, Zhiping,Zhu, Changsheng,et al. Simulation of atypical dendrite growth in Ni-Cu binary alloy with phase-field method[C]:American Scientific Publishers, 25650 North Lewis Way, Stevenson Ranch, California, 91381-1439, United States,2012:1495-1499. |
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