基于有限体积法的Al-Cu合金中Cu枝晶生长过程模拟

汪靓; 崔小朝; 张俊婷; 蔡明; 李冰

计算机应用技术 | 浏览量 : 0 下载量: 134 CSCD: 1

导出
分享
收藏
专辑

基于有限体积法的Al-Cu合金中Cu枝晶生长过程模拟
Numerical Simulation on Cu Dendritie Growth in Al-Cu Alloy Based on Cellular Automaton and Finite Volumetric Method
2011年31卷第8期页码：706-709
纸质出版日期： 2011 ，
DOI：

扫描看全文

[1]汪靓,崔小朝,张俊婷,蔡明,李冰.基于有限体积法的Al-Cu合金中Cu枝晶生长过程模拟[J].特种铸造及有色合金,2011,31(08):706-709.

Wang Liang, Cui Xiaochao, Zhang Junting, et al. Numerical Simulation on Cu Dendritie Growth in Al-Cu Alloy Based on Cellular Automaton and Finite Volumetric Method[J]. Special Casting & Nonferrous Alloys, 2011,31(8):706-709.
[1]汪靓,崔小朝,张俊婷,蔡明,李冰.基于有限体积法的Al-Cu合金中Cu枝晶生长过程模拟[J].特种铸造及有色合金,2011,31(08):706-709. DOI：

Wang Liang, Cui Xiaochao, Zhang Junting, et al. Numerical Simulation on Cu Dendritie Growth in Al-Cu Alloy Based on Cellular Automaton and Finite Volumetric Method[J]. Special Casting & Nonferrous Alloys, 2011,31(8):706-709. DOI：

摘要

考虑成分过冷、曲率过冷、界面能各向异性等因素

将有限体积法与元胞自动机相结合

对枝晶生长过程进行模拟

改进了界面推进和溶质扩散过程的计算。结果发现

过冷度、溶质浓度等因素对于枝晶的形貌和生长速度有着重要影响

而在合金的各种物性参数中

液相溶质扩散系数对于枝晶的生长影响尤为显著。

Abstract

Considering some parameters such as composition undercooling

curvature undercooling and anisotropy of interfacial energy

Cu dendritic growth was simulated by finite volumetric method coupling with cellular automaton method

and calculation of interfacial advancing and solute diffusion was modified.The simulated results show that dendritic morphology and dendritic growth velocity are obviously dependent on the undercooling and solute concentration

especially liquid phase solute diffusion coefficient on dendritic growth.