The Preparation Of Al-Base Master Alloy And Its Strengthening ZL109

The Al-P master alloy and the AlCuMnP quisicrystal master alloy and the AlCuFe quisicrystal master alloy were manufactured under conventional casting condition. The master alloys were prepared with a chemical composition A1-3%P and Al₆₆Cu₂₀Mn₁₄ and Al₆₅Cu₂₀Fe₁₅, and was melted in a crucible electrical resistance furnace. The phosphorus was added into the Al₆₆Cu₂₀Mn₁₄ master alloy by the Cu-P master alloy and the silicon was added into the Al₆₅Cu₂₀Fe₁₅ master alloy by the crystal silicon. The Al-P master alloy was cast into the cavity of a iron mould which was 200°C, but the AlCuMnP quisicrystal master alloy and AlCuFe quisicrystal master alloy were poured into a copper mould which was room temperature. Microstructure and phase constitutes of the solidified Al-P master alloy and AlCuMnP quisicrystal master alloy and AlCuFe quisicrystal master alloy were studied using optical microscopy, X-ray diffraction and scanning electron microscopy (SEM). At...