铸造AlSi7Cu2Mg合金成分优化研究  

Optimization for Composition of Casting AlSi7Cu2Mg Alloy

作　　者：蒋晓英[1] 黄正军[2] 

机构地区：[1]衢州学院(筹)机电控制工程系,浙江衢州324000 [2]中北大学材料科学与工程学院,山西太原030051

出　　处：《热加工工艺》2010年第1期56-57,共2页Hot Working Technology

摘　　要：研究了在低压铸造的条件下,Cu,Mg,Cd,Zr合金元素对铸造AlSi7Cu2Mg力学性能的影响。利用正交实验分析的方法,确定了主要影响因素。实验结果表明:各因子的影响从大到小顺序为:Cu>Cd>Zr>Mg,其中Cu的含量对合金性能影响最大,Cd次之,Zr、Mg的极差值较为接近,对合金力学性能的影响相当;通过分析,得到了最优组合。Effects of alloying elements Cu, Mg, Cd, Zr on mechanical properties of AlSi7Cu2Mg in low pressure casting were investigated. The key influential factors on mechanical properties of AlSi7Cu2Mg were determined by orthogonal test. The results show that the influential orders of Cu, Mg, Cd, Zr on mechanical properties of AlSi7Cu2Mg are as follows： Cu 〉 Cd 〉Zr〉Mg. Cu content is the biggest influential factor to the alloy performance, then Cd; the range value of Zr, Mg is close, so they playa considerable role in the mechanical properties. The optimal combination of the elements is obtained by analyzing.

关 键 词：低压铸造 AlSi7Cu2Mg合金 力学性能 

分 类 号：TG249.2[金属学及工艺—铸造]