中南大学学报（自然科学版）2018，Vol.49Issue(1)：39-46,8.DOI:10.11817/j.issn.1672-7207.2018.01.006
大直径AZ80镁合金热模锻有限元分析
Finite element analysis of hot die forging process for large size AZ80 magnesium alloy
摘要
Abstract
The hot die forging process of φ 764 mm AZ80 magnesium alloy was simulated by Pro/engineer three-dimensional modeling and Deform-3D finite element software. The forging temperature, effective stress and load-stroke were analyzed under different mold temperatures. According to the simulation results, the large size of AZ80 magnesium alloy was obtained. The microstructures and mechanical properties of different parts of the forging were analyzed by scanning electron microscope(SEM) and mechanical property test. The results show that forging can be made when the mold temperature is 350 ℃. The effective stress value and load-stroke are greater when the mold temperatures are 250 ℃ and 300 ℃, respectively. The forging temperature is more than 400 ℃ when the mold temperatures are 400 ℃and 450 ℃, respectively, which makes it easy to burn off. The streamline directions of the different positions in the forging are consistent with those of the distribution of the second phase. The alloy has higher strength and elongation rate when the damage value is less.关键词
Deform-3D有限元软件/模拟/热模锻/AZ80镁合金/显微组织Key words
Deform-3D finite element software/simulation/hot die forging/AZ80 magnesium alloy/microstructure分类
矿业与冶金引用本文复制引用
李慧中,刘超,梁霄鹏,吕凤,齐叶龙,朱泽晓,黄琼..大直径AZ80镁合金热模锻有限元分析[J].中南大学学报（自然科学版）,2018,49(1):39-46,8.基金项目
国家自然科学基金面上资助项目(51074186) (Project(51074186) supported by the National Natural Science Foundation of China) （51074186）
