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通过不同铸造工艺制取的相同成分不同组织形貌的变质用Al－8．62％Sr中间合金，具有明显的变质效果差异在砂型条件下，用Al－8．62％Sr中间合金对共晶Al－Si合金进行变质处理，加人使Al－Si合金含0.1％Sr的锭料和加入使Al-Si合金含0.05％Sr的激冷薄片，二者的变质效果相当，都为5级.在金属型条件下，加入使Al－Si合金含0.06％Sr的锭料和加入使AL－Si合金含0.03％Sr的激冷薄片，二者的变质效果亦相当，都为6级经过试验证明，这种变质效果的差异是由AL－8.62％Sr中间合金的组织遗传效应造成的
Al-8.62% Sr master alloy with the same composition and different morphologies was obtained by different casting processes, which has obvious difference in metamorphism effect. Under sand condition, Al-Si alloy was modified, adding Al-Si alloy containing 0.1% Sr ingot and added Al-Si alloy containing 0.05% Sr chill plate, both of the metamorphic effect, are five. The addition of the ingot containing 0.06% Sr in the Al-Si alloy and the chilling plate added with the Al-Si alloy containing 0.03% Sr in the metallic condition, both of which have the same deteriorating effects, are all class 6 tested , The difference in this metamorphism is caused by the tissue genetic effect of AL-8.62% Sr master alloy