双辊铸轧镁合金热塑性和热轧工艺研究  

Research on Therm-plasticity and Hot Rolling Process of Twin-roll Casting Magnesium Alloy

作　　者：王广山[1] 邸洪双[1] 黄峰[1] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110004

出　　处：《热加工工艺》2009年第11期1-4,共4页Hot Working Technology

基　　金：国家重点基础研究发展计划项目(2006CB605208-1);教育部高等学校博士学科点专项科研基金资助项目(20050145021)

摘　　要：采用高温拉伸实验,研究了铸轧镁合金在高温下的塑性变形特征。研究表明,随实验温度升高,合金高温抗拉强度下降,塑性增加;在300～400℃实验温度下,合金的变形抗力相对较低,热塑性较好;在350℃下热轧,经多道次轧制变形,在300℃×60min退火后,抗拉强度达到270MPa,伸长率为29.8%。The flow behavior of twin-roll casting magnesium alloy during high temperature plastic deformation was studied by high temperature tensile test. The results show that the strength decreases and the plasticity increases with the increment of tensile test temperature; the tensile strength is lower and the plasticity is better when the test temperature is 300-400 ℃; after hot rolling at 350℃ and annealing at 300℃ for 60 minates, the tensile strength is 270 MPa and the elongationrate is 29.8%.

关 键 词：双辊铸轧 AZ31镁合金 热塑性 热轧工艺 显微组织 

分 类 号：TG335.11[金属学及工艺—金属压力加工]