镁/铝复合板材制备工艺及性能研究  

Study of Preparation and Properties of Mg/Al Composite Sheet

作　　者：陈琦[1] 迟之东[1] 

机构地区：[1]苏州有色金属研究院有限公司,江苏苏州215026

出　　处：《有色金属加工》2015年第1期26-28,共3页Nonferrous Metals Processing

基　　金：苏州市科技支撑计划-先进镁合金板材制备关键技术研究(SG201227)

摘　　要：为了改善镁合金板材的耐腐蚀性能,文章采用轧制复合工艺,将A5052铝板包覆在AZ31B镁合金铸轧板坯表面,通过多道次大压下轧制工艺制备出了镁/铝复合板,并考察了复合工艺、热处理工艺对复合板组织、力学性能的影响。研究结果表明：当轧制温度为300~400℃、道次压下率为30%~40%时,镁、铝板材可以实现良好的复合,但随着复合板材热处理温度的提高,复合界面脆化程度增大,板材力学性能下降,镁/铝复合板材的热处理温度应控制在H24温度以下。To improve corrosion resistance of magnesium alloy sheet, the paper presented the process of fabricating Mg/AI composite sheet： by applying accumulative roll bonding to AZ31B magnesium alloy clad with A5052 aluminum alloy. The paper also studies effects of composite manufacturing process and heat treatment on microstructure, mechanical properties. The results show that the magnesium and aluminum sheet could achieve excellent bonding at rolling temperature range of 300℃to 400℃ and with 30% to 40% reduction in pass; However, with the increase in heat treatment temperature, embrittlement of the composite interface increased and mechanical properties decreased; heat treatment temperature should not exceed H24.

关 键 词：镁合金 镁/铝复合板材 金属间化合物 力学性能 

分 类 号：TG335.81[金属学及工艺—金属压力加工]