Microstructure and Properties of Mg-6Zn-6Al-0.5Mn-0.6Si-0.1Ca Alloy

Abstract:

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The Mg-6Zn-6Al-0.5Mn-0.6Si-0.1Ca alloy has been produced in a steel crucible in an electric resistance furnace protectived by CO2+0.5%SF6. The microstructure of the as-cast alloy consisted of matrix–α(Mg) supersaturated solid solution, τ(Mg32(Al,Zn)49) ternary-phase and a small polygonal type Mg2Si phase in matrix. The τ(Mg32(Al,Zn)49) ternary-phase dispersion distribution in grain boundaries. After solution-treated, the amount of quasi-continuous net-shape ternary-phases reduce and small part of ternary-phases dissolve to the matrix which lead to the distribution on the matrix more uniform than as-casting condition in the alloy. The results of tensile, microhardness, impact toughness and corrosion property show that the alloy has better compressive properties.

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Periodical:

Edited by:

Honghua Tan

Pages:

731-735

DOI:

10.4028/www.scientific.net/AMM.66-68.731

Citation:

B. F. Zhang et al., "Microstructure and Properties of Mg-6Zn-6Al-0.5Mn-0.6Si-0.1Ca Alloy", Applied Mechanics and Materials, Vols. 66-68, pp. 731-735, 2011

Online since:

July 2011

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$35.00

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