摘要
以汽车用AZ31镁合金为研究对象,通过对铸态和均匀化态合金的组织与硬度进行分析,得出了均匀化温度与保温时间对合金组织的影响规律。结果表明,半连续铸造下形成的铸造组织由α-Mg基体和β-Mg_(17)Al_(12)相组成,其中,β-Mg_(17)Al_(12)相主要以断续分布的形式存在于基体晶界处;半连续铸造的Petri网反馈控制器用AZ31合金的最佳均匀化处理工艺为:430℃保温12 h。
Taking AZ31 magnesium alloy used of automobile as research object, through the analysis of the microstructure and hardness of the as-cast and uniform-state alloy, the influence of homogenization temperature and time on the microstructure of the alloy was studied. The results show that the casting structure formed at semi continuous casting is composed of α-Mg and β-Mg（17）Al（12） phase, and the β-Mg（17）Al（12） phase mainly distributes in matrix grain boundaries in the form of intermittent. The optimal homogenizing treatment process of AZ31 alloy for computer network structure is as follows： homogenizing for 12 h at 430 ℃.
出处
《铸造技术》
CAS
北大核心
2017年第1期70-73,共4页
Foundry Technology
关键词
汽车
AZ31合金
设计
优化
automobile
AZ31 alloy
optimization
design
