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Based on the several solute redistribution models, a more reasonable solute redistribution model is presented. The cellular states on the solid/liquid interface and the states of its neighboring cells possibly occurring during the grain growth are fully considered in the model, and different formulas are built for different cases. Firstly, the simulation result shows that the disadvantage of the original cellular automation (CA) model (its grain growth is controlled by solute distribution), in which the cells on the grain boundary are kept unsolidified all the time, is eliminated. Then, in order to verify the reliability of the new model, the new model is introduced into the CA model in which grain growth is controlled by Kurz-Giovanola-Trivedi model. The microstructure of the Al-4.7 wt%Cu ingot is calculated. The simulation results are in good accordance with experimental results in two aspects of microstructure morphology and concentration distribution.
[1] Lan Y J, Xiao N M, Li D Z 2005 Acta Mater. 53 991
[2] Chen F Y, Jie W Q 2004 Acta Metall. Sin. 40 664 (in Chinese) [陈福义, 介万奇 2004 金属学报 40 664]
[3] Li Q, Ma Y C, Liu K, Kang X H, Li D Z 2007 Acta Metall. Sin. 43 217 (in Chinese) [李强, 马颖澈, 刘奎, 康秀红, 李殿中 2007 金属学报 43 217]
[4] Beltran-Sanchez L, Stefanescu D M 2003 Metall. Mater. Trans. A 34 367
[5] Beltran-Sanchez L, Stefanescu D M 2004 Metall. Mater. Trans. A 35 2471
[6] Goldak A A 1997 Can. Metall. Quart. 36 57
[7] Gandin C A, Desbiolles J L, Rappaz M, Thevoz P 1999 Metall. Mater. Trans. A 30 3153
[8] Chen J 2005 Ph. D. Dissertation (Nanjing: Southeast University) (in Chinese) [陈晋 2005 博士学位论文 (南京: 东南大学)]
[9] Rappaz M, Gandin C A 1993 Acta Metall. Mater. 41 345
[10] Kurz W, Giovanola B, Trivedi R 1986 Acta Metall. 34 823
[11] Gandin C A, Rappaz M 1994 Acta Metall. Mater. 42 2233
[12] Pan S Y, Zhu M F 2009 Acta Phys. Sin. 58 278 (in Chinese) [潘诗琰, 朱鸣芳 2009 58 278]
[13] Wu M, Ludwig A, Fjeld A 2010 Comput. Mater. Sci. 50 43
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[1] Lan Y J, Xiao N M, Li D Z 2005 Acta Mater. 53 991
[2] Chen F Y, Jie W Q 2004 Acta Metall. Sin. 40 664 (in Chinese) [陈福义, 介万奇 2004 金属学报 40 664]
[3] Li Q, Ma Y C, Liu K, Kang X H, Li D Z 2007 Acta Metall. Sin. 43 217 (in Chinese) [李强, 马颖澈, 刘奎, 康秀红, 李殿中 2007 金属学报 43 217]
[4] Beltran-Sanchez L, Stefanescu D M 2003 Metall. Mater. Trans. A 34 367
[5] Beltran-Sanchez L, Stefanescu D M 2004 Metall. Mater. Trans. A 35 2471
[6] Goldak A A 1997 Can. Metall. Quart. 36 57
[7] Gandin C A, Desbiolles J L, Rappaz M, Thevoz P 1999 Metall. Mater. Trans. A 30 3153
[8] Chen J 2005 Ph. D. Dissertation (Nanjing: Southeast University) (in Chinese) [陈晋 2005 博士学位论文 (南京: 东南大学)]
[9] Rappaz M, Gandin C A 1993 Acta Metall. Mater. 41 345
[10] Kurz W, Giovanola B, Trivedi R 1986 Acta Metall. 34 823
[11] Gandin C A, Rappaz M 1994 Acta Metall. Mater. 42 2233
[12] Pan S Y, Zhu M F 2009 Acta Phys. Sin. 58 278 (in Chinese) [潘诗琰, 朱鸣芳 2009 58 278]
[13] Wu M, Ludwig A, Fjeld A 2010 Comput. Mater. Sci. 50 43
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