AZ31镁合金管二辊斜轧穿孔微观组织演变数值模拟分析  

Numerical Simulation of Microstructure Evolution of AZ31 Magnesium Alloy Tube During Two-High Rotary Piercing

作　　者：胡建华[1] 梁晓媛 丁小凤[3] 双远华[1] 王清华[4] Hu Jianhua;Liang Xiaoyuan;Ding Xiaofeng;Shuang Yuanhua;Wang Qinghua(College of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;School of Materials Science and Engineering,Northwestern Polytechnical University,Xi'an 710072,China;Shanxi Provincial Key Laboratory of Metallurgical Equipment Design Theory and Technology,Taiyuan University of Science and Technology,Taiyuan 030024,China;School of Electronic Information Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China)

机构地区：[1]太原科技大学材料科学与工程学院,山西太原030024 [2]西北工业大学材料学院,陕西西安710072 [3]太原科技大学山西省冶金设备设计理论与技术重点实验室,山西太原030024 [4]太原科技大学电子信息工程学院,山西太原030024

出　　处：《稀有金属材料与工程》2022年第9期3244-3251,共8页Rare Metal Materials and Engineering

基　　金：Shanxi Province Key Technology Project (20191102009);Shanxi Province Key Project of Research and Development Plan (201903D121049)。

摘　　要：提出了一种镁合金无缝管穿孔新方法(二辊斜轧穿孔),并利用三维有限元分析软件DEFORM-3D对二辊斜轧穿孔过程进行了模拟,分析了穿孔过程中的微观组织演变。结果表明,模拟的微观结构与实验的微观结构具有相同的演变规律,平均晶粒尺寸接近,证明了采用二辊穿孔新工艺穿制AZ31大口径镁合金无缝管的可行性和DEFORM-3D软件模拟结果的可靠性。A new piercing method(two-high rotary piercing) for magnesium alloy seamless pipes was proposed,and the two-high piercing process was simulated by DEFORM-3D finite element analysis software.Results show that the simulated microstructures and the experiment ones all exhibit the similar evolution rules,and their average grain sizes are close to each other’s,suggesting that the two-high piercing process is a feasible method to pierce AZ31 magnesium alloy seamless tubes and the DEFORM-3D software is a reliable tool to simulate the two-high piercing process.

关 键 词：镁合金无缝管 二辊穿孔 数值模拟 微观组织演变 

分 类 号：TG339[金属学及工艺—金属压力加工]