Heterogeneous Nucleation for AZ91 with In Situ Synthesis Al4C3

Abstract:

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Heterogeneous nucleation is a critical factor for grain refinement magnesium alloys. The paper reports the Al-9wt.%Mg-10wt.%SiCp master alloy were prepared by adding SiCp into the Al-Mg molten with stirring in 610-595°C, which were introduced into AZ91. Experimental results indicated Al4C3 were in situ synthesis on the surface of SiCp by the reaction between SiCp and Al in 850°C, which could be as nucleant substrate for primary Mg during the solildification of magnesium alloys. This investigation provided a novel idea for grain refinement Mg-Al alloy.

Info:

Periodical:

Advanced Materials Research (Volumes 97-101)

Edited by:

Zhengyi Jiang and Chunliang Zhang

Pages:

1069-1072

DOI:

10.4028/www.scientific.net/AMR.97-101.1069

Citation:

X. Q. Luo et al., "Heterogeneous Nucleation for AZ91 with In Situ Synthesis Al4C3", Advanced Materials Research, Vols. 97-101, pp. 1069-1072, 2010

Online since:

March 2010

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Price:

$35.00

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