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对ＡＩ－Ｓｉ共晶合金在快冷变质和混合稀土变质方式下所获得的共晶硅形态及其与合金强度之间的关系进行了研究，指出共晶硅纤维长径比（ｌ／ｄ）是影响ＡＩ－Ｓｉ共晶合金强度的一个重要因素．
The eutectic silicon morphology and its relationship with the alloy strength of AI-Si eutectic alloy obtained under the conditions of rapid cold metamorphism and mixed rare earth metamorphism were studied. It is pointed out that the aspect ratio (l / d) Is an important factor affecting the strength of AI-Si eutectic alloy.