楚志兵,张铎,薛占元,李玉贵.皮尔格轧制AZ31镁合金管材微观组织预测[J].稀有金属材料与工程,2019,48(10):3195~3201.[chuzhibing,zhangduo,xuezhanyuan,liyugui.Microstructure Prediction of Pilger Rolled AZ31 Magnesium Alloy Pipe[J].Rare Metal Materials and Engineering,2019,48(10):3195~3201.]
皮尔格轧制AZ31镁合金管材微观组织预测
投稿时间:2018-05-23  修订日期:2018-07-25
中文关键词:  AZ31镁合金  元胞自动机  皮尔格轧制  拓扑变形
基金项目:国家自然科学基金面上资助项目(U1710113),中国博士后科学基金面上资助项目(2017M622903),山西省重点研发计划一般项目(201703D121008),山西省研究生优秀创新项目(2017SY077),“重型机械”研究生创新资助计划项目(20172004、20172001)
中文摘要:
      精准预测镁合金管材在皮尔格轧制变形过程中的晶粒演变,对控制镁合金管材的最终性能具有重要参考意义,本文结合AZ31镁合金管材在皮尔格轧机上的轧制实验,建立基于动态再结晶、静态再结晶、静态回复、晶粒粗化及晶粒拓扑变形的元胞自动机模型,并借助有限元计算得出的每道次轧制结果,与元胞自动机结合起来,得到镁合金管材在轧制过程中的晶粒演变的动态特征,发现晶粒在轧制过程中产生连续再结晶并细化,并最终进行实验验证。
Microstructure Prediction of Pilger Rolled AZ31 Magnesium Alloy Pipe
英文关键词:AZ31 magnesium alloy  Cellular automata  Pilger rolling  Topological deformation
英文摘要:
      It is of great significance to predict the grain evolution of magnesium alloy pipe in the process of pilger rolling deformation in real time for controling the final performance of the magnesium alloy pipe. In this paper, the cellular automata model based on dynamic recrystallization, static recrystallization, static recovery, grain coarsening and grain topological deformation was established by rolling experiments on AZ31 magnesium alloy pipes on a Pilger mill.Finally, the results of each pass obtained by the finite element calculation are combined with the cellular automata to obtain the grain evolution of the magnesium alloy pipe in the rolling process in real time. It is found that the grains are continuously generated during the rolling process. and was finally verified by experiments.
作者单位E-mail
楚志兵 太原科技大学 1914009646@qq.com 
张铎 太原科技大学  
薛占元 太原科技大学  
李玉贵 太原科技大学  
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