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用碱性熔盐作为载体将Al_2O_3粒子较均匀地添加到铝合金熔体中是获得Al_2O_3粒子增强铝基复合材料的新方法。本文对比了熔盐种类、配比、加入方法及Al_2O_3粒子大小对其在铝基体中分布均匀性的影响,测定了Al_2O_3粒子强化铝基铸选复合材料的机械性能。
Alkaline molten salt as a carrier to Al 2 O 3 particles is more evenly added to the aluminum alloy melt Al 2 O 3 particles is to obtain a new method of strengthening aluminum matrix composites. In this paper, the effect of Al 2 O 3 particles on the mechanical properties of Al-2O 3 cast-in-situ composites was investigated by comparing the types of molten salt, the blending ratio, the adding method and the size of Al 2 O 3 particles in the Al matrix.