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Effect of RE on Performance of Semi-solid AlSi7 Alloy

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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.

semi-solid remeltingmixed rare earth (RE)Al-Si alloyrefining

R.X. Yi、S.K. Xie、X.Q. Zheng、Y.P. Ai

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School of Engineering, Jinggangshan University, Ji'an, 343009, PR China

2010

Key engineering materials

Key engineering materials

ISSN:1013-9826
年,卷(期):2010.426/427
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