发动机缸盖用铸造铝合金的成分与性能研究  

Study on Composition and Properties of Aluminium Alloy Used for Engine Cylinder Head

作　　者：袁宗齐[1] 

机构地区：[1]贵州交通职业技术学院,贵州贵阳550000

出　　处：《铸造技术》2015年第11期2732-2734,共3页Foundry Technology

摘　　要：在ZL107合金的基础上,添加Mg元素,并通过调整Cu、Mg的含量来优化合金成分。试验结果表明：Al-Si-Cu-Mg合金具有良好的铸造性能,能满足缸盖成型的需求;相比ZL107合金,添加Mg的合金中弥散析出强化相的种类和数量都明显增加,从而能提高合金的强度;Cu含量为3.5%,Mg含量为0.3%～0.4%时,合金的室温和高温强度达到最大值。The ZL107 alloy was optimized by adding Mg element and adjusting the content of Cu and Mg. The experimental results show that the Al-Si-Cu-Mg alloy has good casting properties, and can meet the forming demand of cylinder head. Compared with ZL107 alloy, the type and quantity of dispersion precipitation strengthening phase in the alloy added Mg element increase significantly, which can improve the strength of the alloy. The strength of the alloy at room temperature and high temperature reaches the maximum value when the content of Cu is 3.5% and the content of Mg is 0.3%-0.4%.

关 键 词：发动机缸盖 Al-Si-Cu-Mg 成分优化 铸造性能 力学性能 

分 类 号：U465[一般工业技术—材料科学与工程] TG146.21[机械工程—车辆工程]