热轧镁/铝复合板的组织演变与拉伸性能研究  

Study on Microstructure Evolution and Tensile Properties of Hot Rolled Mg/Al Composite Plates

作　　者：BASHIR Muhammad Umar 李莎 刘志栋[1,2,3] REHMAN Atta Ur ALI Usman 王涛 BASHIR Muhammad Umar;LI Sha;LIU Zhidong;REHMAN Atta Ur;ALI Usman;WANG Tao(School of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment,Ministry of Education,Taiyuan 030024,China;TYUT-UOW Joint Research Center,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学机械与运载工程学院,山西太原030024 [2]太原理工大学先进金属复合材料成形技术与装备教育部工程研究中心,山西太原030024 [3]太原理工大学中-澳联合研究中心,山西太原030024

出　　处：《热加工工艺》2023年第14期71-75,共5页Hot Working Technology

基　　金：国家自然科学基金重点项目(U1710254);太原市科技重大专项项目(170203);山西省科技重大专项项目(MC2016-01,20181101008)。

摘　　要：在不同压下率(40%、45%和50%)条件下采用普通平辊热轧技术制备了镁/铝复合板,并对50%压下率下制备得到的复合板进行了不同温度的退火处理,分析了不同压下率和不同退火温度对界面组织和拉伸性能的影响。结果表明,单道次轧制后,未经退火处理时,镁/铝复合板界面结合良好,无裂纹、金属间化合物出现。随着轧制压下率的增加,轧制态试样的抗拉强度提高。当压下率为50%时,最大抗拉强度为278 MPa。在50%的压下率下,随着退火温度的升高,镁/铝复合板的金属间化合物厚度增加。但是随着退火温度的升高,抗拉强度降低,当退火温度为350℃时,抗拉强度最低为220 MPa。Mg/Al laminated composites were prepared based on the conventional flat roll under various reduction ratios(40%,45%and 50%)at 400℃.What's more,different annealing temperatures were applies for the composite plates at 50%reduction ratio.The effects of the various reduction ratios and annealing temperature on the interfacial microstructure and tensile properties were analyzed.The results show that after single pass rolling,the interface of magnesium/aluminum composite plate is well combined without annealing treatment,no cracks and intermetallic compounds appear.With the increase of rolling reduction rate,the tensile strength of rolled sample increases.At 50%reduction,the maximum tensile strength is 278 MPa,and the thickness of the intermetallic compound of the magnesium/aluminum composite plate increases with the increase of annealing temperature.With the increase of annealing temperature,the tensile strength decreases.When the annealing temperature is 350℃,the lowest tensile strength is 220 MPa.

关 键 词：镁/铝复合板 普通平辊 压下率 退火温度 拉伸性能 

分 类 号：TB331[一般工业技术—材料科学与工程] TG335.8[金属学及工艺—金属压力加工]