航天用6005A铝合金热变形行为研究  

Research on Thermal Deformation Behavior of 6005A Aluminum Alloy Used in Aerospace

作　　者：王胜龙 秦中环 周小京 刘建峰[2] 张海超[2] 董阳 郭晓琳[1] Wang Shenglong;Qin Zhonghuan;Zhou Xiaojing;Liu Jianfeng;Zhang Haichao;Dong Yang;Guo Xiaolin(Beijing Hangxing Machinery Manufacture Co.,Ltd.,Beijing 100013;Shandong University,Jinan 250014;Shandong Yancon Light Alloy Co.,Ltd.,Zoucheng 273515)

机构地区：[1]北京航星机器制造有限公司,北京100013 [2]山东大学,济南250014 [3]山东兖矿轻合金有限公司,邹城273515

出　　处：《航天制造技术》2021年第6期5-11,21,共8页Aerospace Manufacturing Technology

基　　金：国防基础科研计划资助项目(JCKY2018204B034)。

摘　　要：通过Gleeble-3800热模拟试验机对6005A铝合金在623~823K温度和0.01~10s^(-1)应变速率下进行热压缩试验,研究了6005A铝合金热变形行为。基于试验真实应力应变数据,进行了温度修正和摩擦修正,建立了考虑应变补偿且能够准确描述6005A铝合金材料热变形过程中流变应力与应变、应变速率和变形温度之间关系的Arrhenius本构关系模型,相关系数R为0.9985315,平均相对误差AARE为2.56%。The thermal compression test of 6005A aluminum alloy at 623~823 K and 0.01~10 s^(-1) was carried out by Gleeble-3800 thermal simulation testing machine,and the thermal deformation behavior of 6005A aluminum alloy was studied.Based on the true stress and strain data of the experiment,temperature correction and friction correction were carried out,and the Arrhenius constitutive model of 6005A aluminum alloy considering strain compensation was established,which can accurately describe the relationship between flow stress and strain,strain rate and deformation temperature during thermal deformation of 6005A aluminum alloy.The correlation coefficient R is 0.9985315,and the average relative error AARE is 2.56%.

关 键 词：6005A铝合金 热变形行为 真应力-应变曲线 本构方程 

分 类 号：TG146.2[一般工业技术—材料科学与工程]