《Table 1 Chemical composition of ADC12 alloy (wt%)》

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《对合成Al_3Ti/ADC12复合材料微观组织与力学性能的影响（英文）》

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Commercial ADC12 aluminum alloy was chosen as matrix in this study，and the chemical composition is shown in Table 1.Firstly，to remove water，the Na3Al F6 and titanium（Ti）reactant powders were dehydrated at 150°C for 3 h，where the mass ratio of Na3Al F6 and Ti was 1:1.At the same time，the alloy was melted in a graphite crucible at820°C by an electrical resistance furnace.After the alloy was completely melted，the ADC12-3 wt%Ti mixed powder was added into the melt.The melt was isothermally held at820°C for about 10 min to ensure the reaction completely，and then obtained Al3Ti/ADC12 composites was attained.After this in situ reaction，the composite melt was cooled to about 760°C.The Al-10%Sr master alloys were injected into the melt at 740°C to result in the different additions of0.1 wt%，0.25 wt%，0.4 wt%Sr to melt，respectively.And then the melt was held at 820°C for about 10 min to ensure the reaction completely.The metal was finally poured into a metal mould，which was preheated for 200°C.For the purpose of comparison，the Al3Ti/ADC12 composite without Sr was also prepared by the same fabrication process.