高性能6061铝合金的热变形行为研究  

Hot Deformation Behavior of High Performance 6061 Aluminum Alloy

作　　者：刘思佳[1,2] 龙春光 董佩冉[1,2] 彭鹰 彭鑫 LIU Si-jia;LONG Chun-guang;DONG Pei-ran;PENG Ying;PENG Xin(College of Automotive and mechanical engineering,Changsha University of Science and Technology,Changsha 410114,China;Institute of lightweight materials,Changsha University of Science and Technology,Changsha 410114,China)

机构地区：[1]长沙理工大学汽车与机械工程学院,湖南长沙410114 [2]长沙理工大学轻量化新材料研究所,湖南长沙410114

出　　处：《世界有色金属》2018年第9期242-243,共2页World Nonferrous Metals

基　　金：湖南省国际合作项目2014WK2035

摘　　要：本文采用Gleeble-3500热模拟试验进行高温热变形压缩试验,研究6061锻造铝合金在0.001-10s-1之间不同变形速率和375℃~500℃不同变形温度下的热变形流变行为。研究结果表明,6061铝合金的流变应力随应变速率的升高而增大,随着热变形温度的升高而减小。This article uses the Gleeble-3500 thermal simulation test to perform a high temperature thermal deformation compression test.The rheological behavior of 6061 wrought aluminum alloys at different deformation rates between 0.001-10s-1 and different deformation temperatures of 375℃~500℃was investigated.The results show that the flow stress of 6061 aluminum alloy increases with the increase of strain rate and decreases with the increase of heat distortion temperature.

关 键 词：6061铝合金 热变形 塑性变形 

分 类 号：TG146.21[一般工业技术—材料科学与工程]