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Effect of La on Solute Segregation during Solidification of Al2O3•SiO2f/A356 Alloy Composite

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Abstract:

Al2O3·SiO2f/A356 composites contained La were fabricated by squeeze casting, and effect of La on the solute segregation and microstructure were researched. The results indicate that the microstructure in the composite can be refined by La, which enriches near the interface to be favorable to improve the wettability between the fiber and Al alloy. The phases RE-richening do not formed at the interface. There is no special influence of La on the Mg segregation in the matrix alloy. The distribution of Mg and La in the composite are near the interface.

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Periodical:

Advanced Materials Research (Volumes 284-286)

Pages:

98-101

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.284-286.98

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Online since:

July 2011

Authors:

Zheng Liu, Xiao Mei Liu

Keywords:

A356 Aluminum Alloy, Aluminosilicate Short Fiber, Composite, La, Solute Segregation

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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