Synthesis of Composite Metal Hydride Alloy of A2B and AB2 Type by Mechanical Alloying and Spark Plasma Sintering

Abstract:

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The effects of Ca addition on the microstructure and mechanical properties of AZ91 magnesium alloy have been investigated. The main changes in microstructure caused by Ca addition were the grain refinement in the as-cast alloys and the formation of new Al2Ca phase along the grain boundaries. The tensile strength and elongation of the AZ91 magnesium alloy were improved by small addition of Ca due to grain refinement and replacement of Mg17Al12 phase with new Al2Ca compound. However, when above 0.7wt.% Ca was added, mechanical properties of AZ91 magnesium alloy were decreased.

Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

2449-2452

DOI:

10.4028/www.scientific.net/MSF.475-479.2449

Citation:

N. Y. Suk and K. S. Lee, "Synthesis of Composite Metal Hydride Alloy of A2B and AB2 Type by Mechanical Alloying and Spark Plasma Sintering", Materials Science Forum, Vols. 475-479, pp. 2449-2452, 2005

Online since:

January 2005

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$35.00

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