4032铝合金热加工图及热变形机理研究  

Study on the hot processing drawing and deformation mechanism of 4032 aluminum alloy

作　　者：陈强[1] 刘华平 陈拂晓[1] 杨永顺[1] 郭俊卿[1] 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471023 [2]洛阳中重发电设备有限责任公司,河南洛阳471003

出　　处：《锻压装备与制造技术》2013年第5期87-90,共4页China Metalforming Equipment & Manufacturing Technology

摘　　要：采用Gleeble-1500热物理模拟实验机对4032铝合金进行等温压缩实验,研究应变速率在0.02s-1～5s-1和变形温度为370℃～490℃的4032铝合金的热变形特征,并根据材料动态模型构建4032铝合金的热加工图.应用OLYMPUS PMG3型光学显微镜观察分析压缩后试样的微观组织.研究表明：4032铝合金最佳热加工工艺参数为：变形温度460℃～490℃,应变速率0.03s-1～0.36s-1;4032铝合金热加工的软化机制主要是动态回复.The deformation characteristics of 4032 aluminum alloy with 0.02s-l-5s-1 strain velocity and 370℃ 490℃ deformation temperature has been investigated by isothermal compression test through Gleeble-1500 thermal physical simulator system. The hot processing drawing of 4032 aluminum alloy has been established on the basis of dynamic material modeling （DMM）. The microstructures of compressed samples have been studied and analyzed by use of OLYMPUS PMG3 optical microscope. The research shows that the optimal deformation temperatures of hot process is 460℃-490℃ and strain velocity is 0.03s-1-0.36s-l. Dynamic reply is the main softening mechanism.

关 键 词：材料科学 4032铝合金 加工图 动态回复 流变失稳 

分 类 号：TG301[金属学及工艺—金属压力加工]