时效处理对压铸Al-Si-Cu合金力学性能的影响  

Effect of Ageing Treatment on Mechanical Properties of Die Casting Al-Si-Cu Alloy

作　　者：李凯[1,2] 陈名海[1] 张锐[2,3] 李清文[1] 

机构地区：[1]中国科学院苏州纳米技术与纳米仿生研究所,江苏苏州215125 [2]郑州大学材料科学与工程学院,河南郑州450001 [3]郑州航空工业管理学院,河南郑州450046

出　　处：《铸造》2010年第5期463-465,共3页Foundry

摘　　要：压铸铝合金广泛应用于家电和汽车制造等行业,是一种重要的工业原材料。本文研究了时效处理对压铸Al-Si-Cu系合金(ADC12)力学性能的影响。研究结果表明:经过淬火的压铸铝合金在125℃、保温10 h的时效处理,抗拉强度达到308 MPa,布氏硬度达到120 HB,较未经热处理的材料均提高约20%以上。As a kind of important industry raw material, die casting aluminum alloys are widely used in household electrical appliances and automobile industry, etc. In this paper, the effects of aging treatment on mechanical properties of die casting Al-Si-Cu alloy were investigated. The results show that the tensile strength and hardness of the quenched sample by aging at 125 ℃ for 10 h were 308 MPa and 120 HB. respectively, which were enhanced bv 20% comparino to the untreated samoles.

关 键 词：淬火 时效 抗拉强度 布氏硬度 显微结构 

分 类 号：TG156.92[金属学及工艺—热处理]