|
|
|
| Numerical Modeling of Dendritic Growth |
| ZHU Mingfang; CHEN Jin; SUN Guoxiong;HONG Chunpyo |
| Department of Materials Science and Engineering; Southeast University; Nanjing 210096 |
|
Cite this article:
ZHU Mingfang; CHEN Jin; SUN Guoxiong; HONG Chunpyo. Numerical Modeling of Dendritic Growth. Acta Metall Sin, 2005, 41(6): 583-587 .
|
|
|
Abstract Based on the previous work reported by Zhu and Hong, a micro-scale
cellular automaton (CA) model for modeling dendritic growth was further
improved. In the present model, the solid/liquid interface equilibrium
was determined using the Gibbs-Thomson equation for a simple binary
alloy. It accounted for the effect of anisotropy in both interfacial
kinetics and surface energy on the preferred growth orientation of a
dendrite. The improved model was applied to simulate the dendritic
features, in the cases of the free dendritic growth from an undercooled
melt, competitive columnar growth in the directional solidification
and equiaxed dendritic evolution. The simulation results show that
the model can successfully predict the morphologies of both single
and multi-dendrites with various preferred growth orientations.
|
|
Received: 13 July 2004
|
|
|
[1]Boettinger W J,Coriell S R,Greer A L,Karma A,Kurz W,Rappaz M,Trivedi R.Acta Mater,2000;48:43
[2]Dilthey U,Pavlik V.In:Thomas B G,Beckermann C,eds.,Proc 8th Int Conf on Modeling of Casting and Welding Processes,Warrendale,PA:TMS,1998:589
[3]Nastac L.Acta Mater,1999;47:4253
[4]Zhu M F,Hong C P.ISIJ Int,2001;41:436
[5]Xu Q Y,Liu B C.Mater Trans,2001;42:2316
[6]Xu Q Y,Feng W M,Liu B C,Xiong S M.Ada Metall Sin,2002;38:799 (许庆彦,冯伟明,柳百成,熊守美．金属学报,2002;38:799)
[7]Zhu M F,Hong C P.Phys Rev,2002;66B:155428
[8]Zhu M F,Hong C P.Metall Mater Trans,2004;35A:1555
[9]Zhu M F,Yu J,Hong C P.Eng Sci,2004;6(5):8 (朱鸣芳,于金,洪俊杓．中国工程科学,2004;6(5):8)
[10]Beltran-Sanchez L,Stefanescu D M.Metall Mater Trans,2003;34A:367
[11]Beltran-Sanchez L,Stefanescu D M.Metall Mater Trans,2004;35A:2471
[12]Wang W,Lee P D,McLean M.Ada Mater,2003;51:2971
[13]Li Q,Guo Q Y,Li D Z,Qian B N,Li D M,Li R,Zhang P W.Chin Phys Lett,2004;21:143
[14]Li Q,Li D Z,Qian B N.Ada Metall Sin,2004;40:634 (李强,李殿中,钱百年．金属学报,2004;40:634)
[15]Beckermann C,Diepers H-J,Steinbach I,Karma A,Tong X.J Comput Phys,1999;154:468
[16]Shin Y H,Hong C P.ISIJ Int,2002;42:359
[17]Xu J J.J Cryst Growth,2002;245:134
[18]Trivedi R,Mason J T.Metall Trans,1991;22A:235
[19]Hoyt J J,Asta M.Phys Rev,2002;65B:214106
[20]Karma A,Rappel W J.Phys Rev,1998;57E:4323
[21]Lan C W,Liu C C,Hsu C M.J Comput Phys,2002;178:464
[22]Esaka H.PhD Thesis,Ecole Polytechnique Federale de Lausanne,Switzerland,1986
[23]Gandin Ch A,Rappaz M.Ada Metall Mater,1994;42:2233F |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
