基于Monte Carlo(MC)方法,根据晶粒生长机理建立改进的转换概率模型,在不同焙烧温度、焙烧时间和激活能条件下可实现晶粒生长过程结构演化的计算机模拟,对模拟和实验数据进行分析,结果表明:当晶粒生长指数为2.17时,模拟与实验具有较好的一致性,从而得出焙烧过程晶粒的生长动力学模型;该模型能够较好地解释焙烧过程晶粒的生长过程,对晶粒生长动力学研究等具有一定的指导意义.
参考文献
[1] | Mahadevan S;Zhao Y W .Advanced computer simulation of polycrystalline microstructure[J].Computer Methods in Applied Mechanics and Engineering,2002,191:3651-3367. |
[2] | A. J. Haslam;D. Moldovan;V. Yamakov;D. Wolf;S. R. Phillpot;H. Gleiter .Stress-enhanced grain growth in a nanocrystalline material by molecular-dynamics simulation[J].Acta materialia,2003(7):2097-2112. |
[3] | H. N. Lee;H. S. Ryoo;S. K. Hwang .Monte Carlo simulation of microstructure evolution based on grain boundary character distribution[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(1/2):176-188. |
[4] | Rollet A D;项金钟;吴兴惠.计算材料学[M].北京:化学工业出版社,2002:92-105. |
[5] | Y.G. Zheng;C. Lu;Y.-W. Mai;H.W. Zhang;Z. Chen .Model-based simulation of normal grain growth in a two-phase nanostructured system[J].Science and technology of advanced materials,2006(8):812-818. |
[6] | Zollner D;Streitenberger P .Three-dimensional normal grain growth: Monte Carlo Potts model simulation and analytical mean field theory[J].Scripta materialia,2006(9):1697-1702. |
[7] | Ivasishin OM;Shevchenko SV;Vasiliev NL;Semiatin SL .A 3-D Monte-Carlo (Potts) model for recrystallization and grain growth in polycrystalline materials[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2006(1-2):216-232. |
[8] | Y.H. Lu;Z.-J. Liu;Y.G. Shen .Investigation of nanostructure evolution and twinning of nanocrystallites in Ti-B_x-N_y nanocomposite thin films deposited by magnetron sputtering at low temperature by means of HRTEM and Monte Carlo simulations[J].Acta materialia,2006(11):2897-2905. |
[9] | Shen YG;Lu YH;Liu ZJ .Microstructure evolution and grain growth of nanocomposite TiN-TiB2 films: experiment and simulation[J].Surface & Coatings Technology,2006(22/23):6474-6478. |
[10] | Kishino J;Nomura H;Shin S G et al.Computational study on grain growth in cemented carbides[J].International Journal of Refractory Metals & Hard,2002,20:31. |
[11] | Binder K.Methods in statistical physics[M].Berlin,Heidelberg:Springer,1986 |
[12] | D.Raabe .Scaling Monte Carlo kinetics of the Potts model using rate theory[J].Acta materialia,2000(7):1617-1628. |
[13] | 刘祖耀,李世晨,郑子樵,陈大钦,李剑.正常晶粒长大的计算机模拟(Ⅰ)--晶粒长大动力学跃迁概率的改进[J].中国有色金属学报,2003(06):1357-1360. |
[14] | 果世驹.粉末烧结理论[M].北京:冶金工业出版社,1998:373-375. |
[15] | Yu Q;Esche S K .Three-dimensional grain growth modeling with a Monte Carlo algorithm[J].Materials Letters,2003,57:4622-4626. |
[16] | Guoquan Liu;Haibo Yu;Xiaoyan Song .A new model of three-dimensional grain growth: theory and computer simulation of topology-dependency of individual grain growth rate[J].Materials & Design,2001(1):33-38. |
[17] | 牛新书,许亚杰.二氧化钛纳米材料的合成及其在环保领域的应用研究进展[J].化工环保,2002(04):203-208. |
[18] | 刘河洲,胡文彬,顾明元,吴人洁.纳米TiO2晶粒生长动力学研究[J].无机材料学报,2002(03):429-436. |
[19] | Qiang Yu;Sven K. Esche .A Monte Carlo algorithm for single phase normal grain growth with improved accuracy and efficiency[J].Computational Materials Science,2003(3):259-270. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%