Effect of Cerium Addition on the Microstructure and Mechanical Properties of Al-Zn-Mg-Cu Alloy

Abstract:

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Al–8.6Zn–2.6Mg-2.4Cu–xCe(x = 0–0.4 wt. %) alloys were prepared by metal mould casting method, the effects of Ce on the microstructure and mechanical properties of the alloys were investigated. The results showed that the dendrite as well as grain size were refined by the addition of Ce, and the best refinement was obtained in 0.25 wt % Ce containing alloy. The main phases in the as-cast alloys were α-Al, Mg-Zn32, Mg32 (Al, Zn)49, and Al4Ce phase was found in the alloys containing more than 0.1%Ce. The addition of Ce improved the mechanical properties of the alloys. The strengthening mechanism was attributed to grain refinement and compound reinforced

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Periodical:

Edited by:

G. B. Kale, M. Sundararaman, G. K. Dey and G. P. Tiwari

Pages:

97-103

DOI:

10.4028/www.scientific.net/DDF.279.97

Citation:

A. K. Chaubey et al., "Effect of Cerium Addition on the Microstructure and Mechanical Properties of Al-Zn-Mg-Cu Alloy", Defect and Diffusion Forum, Vol. 279, pp. 97-103, 2008

Online since:

August 2008

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$35.00

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