| 铝双辊连续铸轧凝固微观组织的数值模拟(英文) |
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| 引用本文： | 陈守东,陈敬超.铝双辊连续铸轧凝固微观组织的数值模拟(英文)[J].中国有色金属学会会刊,2012,22(6):1452-1456. |
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| 作者姓名： | 陈守东 陈敬超 |
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| 作者单位： | 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 |
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| 基金项目： | Project (u0837601) supported by the New Joint Fund of National Natural Science Foundation of China;Project (50874054) supported by the National Natural Science Foundation of China |
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| 摘 要： | 在研究双辊连铸纯铝薄带凝固过程的基础上,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双辊连续铸轧纯铝薄带凝固的异质形核,枝晶尖端的生长动力学(KGT),柱状晶向等轴晶生长的转变(CET)的解析模型;建立基于元胞自动机(CA)的双辊连铸纯铝薄带凝固组织的仿真模型,为双辊连铸薄带凝固组织的仿真模拟奠定基础,从而为双辊薄带连铸工艺提供一定的理论指导。同时,利用双辊薄带连续铸轧纯铝凝固微观组织过程验证数学模拟的可行性。
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| 关 键 词： | 双辊连续铸轧 凝固组织 仿真模拟 微观模型 |
| 收稿时间： | 29 June 2011 |
Simulation of microstructures in solidification of aluminum twin-roll casting |
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| CHEN Shou-dong,CHEN Jing-chao.Simulation of microstructures in solidification of aluminum twin-roll casting[J].Transactions of Nonferrous Metals Society of China,2012,22(6):1452-1456. |
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| Authors: | CHEN Shou-dong CHEN Jing-chao |
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| Affiliation: | 1,2 1.Key Laboratory of Advance Material of Rare Precious and Nonferrous Metals of Ministry of Education,Kunming University of Science and Technology,Kunming 650093,China;2.Key Laboratory of Advanced Materials of Yu nnan Province,Kunming 650093,China |
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| Abstract: | Based on the research on the solidification of twin-roll continuous casting aluminum thin strip,the analytical model of heterogeneous nucleation,the growth kinetics of tip(KGT) and columnar dendrite transformation to equiaxed dendrite(CET) of twin-roll continuous casting aluminum thin strip solidification was established by means of the principle of metal solidification and modern computer emulational technology.Meantime,based on the cellular automaton,the emulational model of twin-roll continuous casting aluminum thin strip solidification was established.The foundation for the emulational simulation of twin-roll casting thin strip solidification structure was laid.Meanwhile,the mathematical simulation feasibility was confirmed by using the solidification process of twin-roll continuous casting aluminum thin strip. |
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| Keywords: | twin-roll continuous casting solidification structure emulational simulation micro-model |
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