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Microstructure and Properties of In Situ Al-Si-Mg2Si Composite Prepared by Melt Superheating

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Abstract:

Mg2Si particle reinforced in-situ Al-Si composite is prepared by melt superheating, and the microstructure and properties of the composite are researched. The results indicate that it is feasible that the melt superheating is applied to preparing Mg2Si particle reinforced in-situ Al-Si composite, and the suitable preparing parameters of melt superheating on the alloy are obtained. When the superheating temperature is 860°C and holding time is 25 min, the average size of Mg2Si particle in the alloy will be reduced to 11μm compared with 34μm without melt superheating, and the mechanical properties of the composite is obviously improved.

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Periodical:

Applied Mechanics and Materials (Volumes 52-54)

Pages:

750-754

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.52-54.750

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Online since:

March 2011

Authors:

Zheng Liu, Min Xie, Xiao Mei Liu

Keywords:

Al-Si Alloy, Composite, Hardness, Melt Superheating, Mg2Si, Wear Resistance

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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