NDLI: Structure and mechanical properties of Al-based gradient composites reinforced with primary Si and Mg$_{2}$Si particles through centrifugal casting

Content Provider	Springer Nature Link
Author	Zhai, Yanbo Ma, Xiuteng Mei, Zhen
Copyright Year	2013
Abstract	The structure and mechanical properties of a new type of Al-based discontinuous gradient composites prepared by using the ternary Al-19Si-5Mg alloys as the raw material adopting the centrifugal casting method were investigated. Structurally, the composites are divided into two zones: a reinforced zone with the high volume fraction of primary Si and Mg$_{2}$Si particles and an unreinforced zone with no or a few particles. In the reinforced zone, the primary particles are evenly distributed, with the sizes of the primary Si particles 80–120 μm, and that of primary Mg$_{2}$Si particles 20–50 μm. The properties test results show the reinforced zone has higher Rockwell hardness and better wear resistance than the unreinforced zone, due to the complementary reinforcement relationship between the primary Si and Mg$_{2}$Si particles and their high volume fraction.
Starting Page	813
Ending Page	818
Page Count	6
File Format	PDF
ISSN	10002413
Journal	Journal of Wuhan University of Technology-Mater. Sci. Ed.
Volume Number	28
Issue Number	4
e-ISSN	19930437
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-07-13
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	gradient composites centrifugal casting Si Mg$_{2}$Si Materials Science
Content Type	Text
Resource Type	Article
Subject	Materials Science

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Structure and mechanical properties of Al-based gradient composites reinforced with primary Si and Mg$_{2}$Si particles through centrifugal casting