陈守东,陈敬超

• 1:昆明理工大学稀贵及有色金属先进材料教育部重点实验室云南省新材料制备与加工重点实验室

摘要(Abstract)：

以双辊薄带连续铸轧工艺凝固过程为基础,基于金属凝固的基本原理,并运用现代计算机仿真技术建立了双辊薄带连铸凝固过程的异质形核、修正的枝晶尖端生长动力学、柱状晶向等轴晶生长转变(CET)的解析模型以及基于元胞自动机(CA)的双辊薄带连续铸轧凝固组织的仿真模型,为双辊薄带连续铸轧凝固组织形成的仿真模拟奠定了基础,同时利用铝合金双辊薄带连续铸轧组织凝固过程验证了数学模拟的可行性。结果表明:可用建立的数学模型模拟预测铸轧工艺参数对双辊连续铸轧薄带凝固组织的影响。

关键词(KeyWords)： 双辊连续铸轧;凝固组织;数值模拟;微观模型;实验验证

Abstract:

Keywords:

基金项目(Foundation): NFSC-云南联合基金(u0837601);; 云南省创新团队(2009CI003);; 云南省自然科学基金(2008CD087)

作者(Author): 陈守东,陈敬超

DOI: 10.13289/j.issn.1009-6264.2012.07.016

参考文献(References)：

• [1]WANG Bo,ZHANG Jie-yu,LI Xiang-mei,et al.Simulation of solidification micro structure in twin-roll casting strip[J].Computational MaterialsScience,2010,49:S135-S139.
• [2]YANG Ming-bo,PAN Fu-sheng.Analysis about forming mechanism of equiaxed crystal zone for 1Cr18Ni9Ti stainless steel twin-roll thin strip[J].Journal of Materials Processing Technology,2009,209:2203-2211.
• [3]王波,张捷宇,张胤,等.双辊薄带连铸过程数学物理模拟研究[J].内蒙古科技大学学报,2008,27(1):67-72.WANG Bo,ZHANG Jie-yu,ZHANG Yin,et al.Numerical and physical simulation of twin-roll strip continuous casting process by water model[J].Journal of Inner Mongolia University of Science and Technology,2008,27(1):67-72.
• [4]张纬栋,任三兵,杜锋,等.双辊薄带连铸布流系统研究[J].过程工程学报,2009,9(Z1):102-106.ZHANG Wei-dong,REN San-bing,DU Feng,et al.Study on delivery system of twin-roll strip casting[J].The Chinese Journal of ProcessEngineering,2009,9(Z1):102-106.
• [5]张彩东,蒋斌,杨琴,等.M2高速钢工业铸带中共晶碳化物及其演化[J].材料热处理学报,2009,30(3):107-110.ZHANG Cai-dong,JIANG Bin,YANG Qin,et al.The evolution of eutectic carbide in M2 high-speed steel cast-strip[J].Transactions of Materialsand Heat Treatment,2009,30(3):107-110.
• [6]王振敏,方圆,齐俊杰,等.AISI304不锈钢双辊连铸薄带的组织性能[J].材料热处理学报,2007,28(6):71-74.WANG Zhen-min,FANG Yuan,QI Jun-jie,et al.Mechanical properties and microstructure of AISl304 twin-roll casting thin strip[J].Transactionsof Materials and Heat Treatment,2007,28(6):71-74.
• [7]KURZ W,GIOVANOLA B,TRIVEDI R.Theory of microstructural development during rapid solidification[J].Acta Metall,1986,34(5):823-830.
• [8]LEE K,HONG C.Stochastic modeling of solidification grain structure of Al-Cu crystalline ribbons in planar casting[J].ISIJ Inter,1997,37(1):38-45.
• [9]LIU Xiao-bo,XU Qing-yan,JING Tao,et al.Microstructure of aluminum twin-roll casting based on Cellular Automation[J].Trans Nonferrous MetSoc China,2008,18:944-948.
• [10]LIU Xiao-bo,XU Qing-yan,JING Tao,et al.Simulation of microstructures in solidification of aluminum twin-roll casting based on CA[J].TransNonferrous Met Soc China,2009,19:422-427.
• [11]程挺宇,郑锋,徐少兵.双辊薄带连铸技术研究[J].铸造技术,2009,30(7):896-898.CHEN Ting-yu,ZHENG Feng,XU Shao-bing.Twin rolls thin strip continuous casting technology[J].Foundry Technology,2009,30(7):896-898.
• [12]ZHAO Hu,LI Pei-jie,HE Liang-ju.Coupled analysis of temperature and flow during twin-roll casting of magnesium alloy strip[J].Journal ofMaterials Processing Technology,2011,211(6):1197-1202.
• [13]Sanjeev Das,Lim N S,Seol J B,et al.Effect of the rolling speed on micro structural and mechanical properties of aluminum-magnesium alloysprepared by twin roll casting[J].Materials and Design,2010,31:1633-1638.
• [14]RAPPAZ M.Probabolic Modeling of Microstructure Formation in Solidification Process[J].Acta Metal Mater,1993(2):345-360.
• [15]胡汉起.金属凝固原理[M].北京:机械工业出版社,1991.
• [16]TAKATANI M,GANDIN Ch A,RAPPAZ M.EBSD Characterisation and modeling of columnar dendritic grains growing in the resence of fluid flow[J].Acta Metall,2000,48(3):675-686.
• [17]杨明波,潘复生,彭晓东,等.双辊薄带凝固过程的宏观一微观耦合数学模型[J].重庆大学学报:自然科学版,2005,28(5):39-44.YANG Ming-bo,PAN Fu-sheng,PENG Xiao-dong,et al.Microscopic coupling mathematical model for solidification process of twin-roll thin strip[J].Journal of Chongqing University:Natural Science Edition,2005,28(5):39-44.
• [18]季晨曦,张炯明,任嵬,等.双辊薄带连铸柱状晶组织模拟[J].北京科技大学学报,2008,30(10):1107-1111.JI Chen-xi,ZHANG Jiong-ming,REN Wei,et al.Simulation of columnar grain structure in twin-roll cast strips[J].Journal of University of Scienceand Technology Beijing,2008,30(10):1107-1111.
• [19]李斌.金属凝固微观组织的数值模拟[D].沈阳:东北大学,2006.

文章评论(Comment)：