Al-5.8Cu-0.6Mg-0.6Ag-0.3Nd合金的热变形行为研究  

Study on Thermal Deformation Behavior of Al-5.8Cu-0.6Mg-0.6Ag-0.3Nd Alloy

作　　者：田哲[1,2] 易丹青[1,2] 刘会群[1,2] 王斌[1,2] 

机构地区：[1]中南大学材料科学与工程学院,湖南长沙410083 [2]有色金属材料科学与工程教育部重点实验室,湖南长沙410083

出　　处：《热加工工艺》2016年第13期16-20,25,共6页Hot Working Technology

基　　金：国家科技支撑计划(2014BAC03B05)

摘　　要：通过热模拟实验研究了Al-5.8Cu-0.6Mg-0.6Ag-0.3Nd合金在变形温度360~520℃和应变速率0.001~10 s^(-1)下的热变形行为。计算了变形激活能,建立了变形本构方程,绘制了变形条件下的热加工图。结果表明,合金最适宜的加工变形条件为变形温度440℃和应变速率0.001s^(-1)。The thermal deformation behavior of Al-5.8Cu-0.6Mg-0.6Ag-0.3Nd alloy was investigated at 360-520℃ and strain rates of 0.001-10s^（-1） by thermal simulation test. The deformation activation energy was calculated, and the constitutive equation was established. The hot processing map was also drawn under the deformation conditions. The results show that the suitable deformation condition of AI-5.8Cu-0.6Mg-0.6Ag-0.3Nd alloy is deformation temperature of 440℃ and strain rates of 0.001s^-1.

关 键 词：Al-Cu-O.Mg-Ag-Nd 热模拟 本构方程 热加工图 

分 类 号：TG306[金属学及工艺—金属压力加工] TG146.21[一般工业技术—材料科学与工程]