5083铝合金热压缩过程的有限元模拟研究
FEM Simulation of Hot Compression of 5083 Aluminum Alloy

作者: 刘 栩 , 李严法 , 李江宇 , 戴青松 :广西柳州银海铝业股份有限公司,广西 柳州; 邓运来 :中南大学材料科学与工程学院,湖南 长沙;

关键词: 5083铝合金热压缩有限元分析变形不均匀性5083 Aluminum Alloy Hot Deformation Finite Element Analysis Deformation Ununiformity

摘要:
采用Gleeble-3800热模拟试验机对5083铝合金进行热压缩实验,并利用有限元分析软件DEFOM-3D对5083铝合金在变形温度为400℃应变速率为1 s−1,变形温度为400℃应变速率为10 s−1,变形温度为500℃应变速率为1 s−1条件下热压缩过程进行数值模拟,利用后处理程序,分析了合金内部的应变场、应变速率场、应力场和温度场变化。研究表明:5083铝合金热压缩过程具有明显的变形不均匀性,试样分为易变形区、难变形区和自由变形区;为了合理预测再结晶晶粒尺寸,需对实验数据进行修正。

Abstract: The hot compression of 5083 aluminum alloy was carried out on Gleeble-3800 thermal simulator. The hot compression process at a strain rate of 1 s−1 and temperature 400˚C, strain rate of 10 s−1 and temperature 400˚C, strain rate of 1 s−1 and temperature 500˚C of 5083 aluminum alloy was simulated in the finite element analysis software DEFOM-3D. The variation and distribution of strain, strain rate, stress and temperature in the compressed work piece were analyzed by the post-processing procedures. The results show that the hot compression of 5083 aluminum alloy exhibits a nonuniform characteristic and the specimen is divided into easy deformation zone, hard deformation zone and the free deformation zone. The temperature has gone up during the hot de-formation process, and the experimental data need to be modified in order to reasonably predict recrystallization grain size.

文章引用: 刘 栩 , 李严法 , 李江宇 , 戴青松 , 邓运来 (2016) 5083铝合金热压缩过程的有限元模拟研究。 材料科学, 6, 59-64. doi: 10.12677/MS.2016.61008

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