汽车发动机缸体用ADC12铝合金铸造成分优化

Composition Optimization of ADCl2 Casting Aluminum Alloy for Automobile Engine Cylinder Block

研究了Si、Cu、Mg、Mn四种元素对ADC12合金力学性能的影响。确定了汽车发动机缸体用铝合金ADC12的最优成分(质量分数,%):11Si,2.5Cu,0.3Mg,0.5Mn,其力学性能为抗拉强度236.5 MPa、伸长率3.88%。

Effects of Si, Cu, Mg and Mn on mechanical properties of ADC12 alloy were studied. The optimal composition of the ADCl2 cast aluminum alloy for automobile engine cylinder block was ascertained. It is 11 Si, 2.5Cu, 0.3Mg and 0.5Mn（wt%）. The mechanical properties are tensile strength of 236.5MPa, and elongation of 3.88%.