通过将元胞自动机和有限差分方法相耦合,建立了立方体系金属和合金枝晶生长的三维模型.应用该模型,模拟了Al-Cu合金过冷熔体中自由枝晶的生长和定向凝固条件下Al-Cu合金凝固组织演变过程.模拟结果清楚展现了过冷熔体中自由枝晶的生长过程和定向凝固过程中枝晶的形成与淹没,与理论预测和实验结果相吻合,表明所发展的模型能够较准确地描述立方体系金属和合金的凝固组织演变过程.
参考文献
| [1] | Boettinger W J,Coriell S R,Greer A L,Karma A,Kurz W,Rappaz M,Trivedi R.Acta Mater,2000; 48:43 |
| [2] | Gaumann M,Trivedi R,Kurz W.Mater Sci Eng,1997;A226-228:763 |
| [3] | Liu Z Y,Xu Q Y,Liu B C.J Tsinghua Univ (Sci Tech),2007; 47:1253(刘志勇,许庆彦,柳百成.清华大学学报(自然科学版),2007;47:1253) |
| [4] | Rappaz M,Gandin Ch A.Acta Mater,1993; 41:345 |
| [5] | Gandin Ch A,Desbiolles J L,Rappaz M.Metall Mater Trans,1999; 30A:3153 |
| [6] | Pan S Y,Zhu M F.Acta Phys Sin,2009; 58:S278(潘诗琰,朱鸣芳.物理学报,2009; 58:S278) |
| [7] | Gandin Ch A,Rappaz M.Acta Mater,1994; 42:2233 |
| [8] | Zhu M F,Hong C P.ISIJ Int,2001; 41:436 |
| [9] | Zhu M F,Lee S Y,Hong C P.Phys Rev,2004; 69E:1 |
| [10] | Spittle A,Brown S G R.J Mater Sci,1995; 30:3989 |
| [11] | Dong H B,Lee P D.Acta Mater,2005; 53:659 |
| [12] | Gandin Ch A,Rappaz M.Acta Mater,1997; 45:2187 |
| [13] | Wang W,Lee P D,McLean M.Acta Mater,2003; 51:2971 |
| [14] | Xu L,Guo H M,Yang X J.Foundry,2005; 54:575(许林,郭洪民,杨湘杰.铸造,2005; 54:575) |
| [15] | Pan S Y,Zhu M F.Acta Mater,2010; 58:340 |
| [16] | Steinbach I.Acta Mater,2008; 56:4965 |
| [17] | Nastac L.Acta Mater,1999; 47:4253 |
| [18] | Beckermann C,Diepers H J,Steinbach I,Karma A,Tong X.J Comput Phys,1999; 154:468 |
| [19] | Wheeler A A,Boettinger W J,McFadden G B.Phys Rev,1992; 45A:7424 |
| [20] | Beltran-Sanchez L,Stefanescu D M.Metall Mater Trans,2004; 35A:2471 |
| [21] | Hu H Q.Theories of Metal Solidification.2nd Ed.Beijing:Mechanical Industry Press,2000:110(胡汉起.金属凝固原理.第二版.北京:机械工业出版社,2000:110) |
| [22] | Scheil E.Z Metallk,1942; 34:70 |
| [23] | Huang W D,Geng X G,Zhou Y H.J Cryst Growth,1993;134:105 |
| [24] | Lin X,Huang W,Feng J,Li T,Zhou Y.Acta Mater,1999;47:3271 |
| [25] | (U)stün E,Cadirh E,Kaya H.J Phys,2006; 18:7825 |
| [26] | Hunt J D,Lu S Z.Metall Mater Trans,1996; 27A:611 |
| [27] | Trivedi R.Metall Trans,1984; 15A:977 |
| [28] | Li L X,Lin X,Wang M,Huang W D.Foundry Technol,2008; 29:891(李林蓄,林鑫,王猛,黄卫东.铸造技术,2008; 29:891) |
| [29] | Qu M,Liu L,Tang F T,Fu H Z.Chin J Nonferrous Met,2008; 18:282(屈敏,刘林,唐峰涛,傅恒志.中国有色金属学报,2008; 18:282) |
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