双辊连铸铝合金薄带凝固组织模拟的微观模型  

Micro-model of Solidification Structure Simulation of Twin-roll Continuous Casting Aluminum Alloys Thin Strip

作　　者：陈守东[1] 陈敬超[1] 冯晶[1] 

机构地区：[1]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,昆明理工大学

出　　处：《铸造技术》2011年第9期1296-1300,共5页Foundry Technology

基　　金：国家科技支撑2007BAE23B02

摘　　要：在研究双辊连铸铝合金薄带工艺凝固过程的基础上,运用金属凝固的基本原理,并运用现代计算机仿真技术,建立了双辊连铸铝合金薄带凝固的异质形核、枝晶尖端的生长动力学、柱状晶向等轴晶转变(CET)的解析模型,同时建立了基于元胞自动机(CA)的双辊连铸铝合金薄带凝固组织的仿真模型,为双辊连铸薄带凝固组织形成的仿真模拟奠定了基础。Based on the research of the solidification of twin-roll continuous casting aluminum alloy thin strip,the analytical model of heterogeneous nucleation,the growth of tip and columnar dendrite transformation to equiaxis dendrite（CET） of twin-roll continuous casting aluminum alloy thin strip solidification are established by means of the principle of metal solidification and modern computer emulation technology.Meantime based on the cellular automaton,the emulation model of twin-roll continuous casting aluminum alloy thin strip solidification is established.The foundation for the emulation simulation of twin-roll casting thin strip solidification structure is laid.

关 键 词：双辊连续铸轧 凝固组织 仿真模拟 微观模型 

分 类 号：TG292[金属学及工艺—铸造]