基于Gleeble快速压缩试验构建材料本构方程的研究  

Study on Construction of Material's Constitutive Equation Based on Gleeble Fast Compression Test

作　　者：李红斌[1,2] 方芳[3] 刘珊珊[1,2] 徐树成[1,2] 

机构地区：[1]河北联合大学冶金与能源学院,河北唐山063009 [2]河北省现代冶金技术重点实验室,河北唐山063009 [3]河北联合大学信息工程学院,河北唐山063009

出　　处：《热加工工艺》2013年第22期51-54,共4页Hot Working Technology

基　　金：河北联合大学青年基金项目(201104)

摘　　要：采用Gleeble3500热模拟试验,研究了热压缩变形过程中塑性功转化热造成的温度升高对构建材料本构方程精确度的影响,并构建了带有温度补偿的材料本构方程。结果表明:高速压缩过程中(ε觶≥1s-1),由塑性功转化热造成的温升与真应变呈线性关系;构建带有温升补偿的本构方程可提高本构方程的精度。The temperature increasing, the effects of plastic deformation work switch to thermal, by Gleeble 3500 thermal simulation, during hot compression on the accuration of materials＇ constitutive equation was studied. The construct material＇s constitutive equation with thermal compensation was built up. The conclutions indicate that the temperature increasing is related with ture strain . The constitutive equation with thermal compensation can increase the accuration of constitutive model.

关 键 词：本构方程 压缩试验 塑性功转化热 温度补偿 

分 类 号：TG113.253[金属学及工艺—物理冶金]