Superplastic Behaviors of Casting AZ31 Magnesium Alloy

Abstract:

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The superplasticity of magnesium alloy is important in industrial application. However the superplastic deformation of casting magnesium alloy is hard to be realized. In this paper, the stress–strain behaviors of casting AZ31 magnesium alloy with various strain rates at different deformation temperatures were investigated. The alloy was tested in the tensile condition with initial grain size of 25μm. It was found that the elongation of the alloy at 400°C with ε& = 4.25×10-4 s-1 is almost 200%. According to the results of uniaxial tensile experiment, the alloy exhibited superplastic deformation behavior with the slow stain rate in a temperature range of 350 to 450°C. The microstructures deformed and undeformed samples were observed with aid of optical microscope.

Info:

Periodical:

Materials Science Forum (Volumes 551-552)

Edited by:

K.F. Zhang

Pages:

237-240

DOI:

10.4028/www.scientific.net/MSF.551-552.237

Citation:

H. B. Li et al., "Superplastic Behaviors of Casting AZ31 Magnesium Alloy", Materials Science Forum, Vols. 551-552, pp. 237-240, 2007

Online since:

July 2007

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Price:

$35.00

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