Effect of RE on Performance of Semi-Solid AlSi7 Alloy

Rong Xi Yi; Shi-Kun Xie; Xiao Qiu Zheng; Yong Ping Ai

doi:10.4028/www.scientific.net/KEM.426-427.581

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 426-427Effect of RE on Performance of Semi-Solid AlSi7...

Effect of RE on Performance of Semi-Solid AlSi7 Alloy

Abstract:

The semi-solid slurry of AlSi7 alloy was prepared by near-liquids cast processing. The effects of different content of RE on the cast performance and the semi-solid remelting performance in AlSi7 alloy was researched. The results indicated that adding RE will widen the AlSi7 alloy solid-liquid two-phase zone temperature and refine the grains, silicon will obvious metamorphoses. The best amount of RE is about 0.5%. Its semi-solid remelting organization is equilateral globular grains.