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Effects of Si content on the microstructure and tensile strength of an in situAl/Mg2Si composite

Published online by Cambridge University Press:  26 July 2012

Jian Zhang ,
Yu-qing Wang ,
Bing Yang  and
Ben-lian Zhou
Jian Zhang
Affiliation:
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China
Yu-qing Wang
Affiliation:
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China
Bing Yang
Affiliation:
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China
Ben-lian Zhou
Affiliation:
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, and International Center for Material Physics, Chinese Academy of Sciences, Shenyang 110015, China
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Extract

Al/Mg2Si composites were in situ fabricated by the usual die-casting technique, and effects of the Si contents in the composites on microstructures and tensile strengths were investigated. Experimental results show that extra Si contents in Al/Mg2Si composites induce a ductile matrix and a uniform distribution of in situ particles. The refined microstructures lead to an obvious increase in both strength and ductility of the metal matrix composites (MMCs). The effects of extra Si on both the solidification process and fracture characteristics of the Al/Mg2Si composites were analyzed.

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 1 , January 1999 , pp. 68 - 74
Copyright
Copyright © Materials Research Society 1999

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