湖南大学学报（自然科学版）2013，Vol.40Issue(8)：83-89,7.
4045铝合金热变形行为及其加工图
Hot Deformation Behavior and Processing Map of 4045 Aluminum Alloy
摘要
Abstract
Isothermal compression tests of 4045 aluminum alloy were carried out at the strain rate range of 0.01～10 s-1 and at the temperature range of 300～450 ℃ on Gleeble-3500 system to study the hot deformation behavior and hot workability.The results show that the flow behavior of 4045 aluminum alloy can be described by the hyperbolic-sine equation with the average activation energy of 189.93 kJ/mol.The processing maps were calculated on the basis of the dynamic materials model (DMM).The optimum processing parameters were obtained at strain rate range of around 0.1～0.3 s-1 and deformation temperature range between 380 ℃ and 450 ℃ on the basis of processing map and microstructural evolution analysis.关键词
铝合金/热变形/材料动态模型/加工图Key words
aluminum alloy/ hot deformation/ dynamic materials model/ processing map分类
矿业与冶金引用本文复制引用
张辉,伍豪杰,蒋福林..4045铝合金热变形行为及其加工图[J].湖南大学学报（自然科学版）,2013,40(8):83-89,7.基金项目
国际科技合作计划项目(010S2010GR0739) （010S2010GR0739）
