Hot Working of the ZEK200 Magnesium Alloy

Abstract:

Article Preview

The high temperature workability of the ZEK200 Mg-alloy produced by Direct Chill casting (DC) was investigated by torsion testing between 200 and 450°C. The alloy exhibited a higher strength and a slightly lower equivalent strain to fracture than AZ31 and ZM21 produced by DC. The calculation of the constitutive equation gave a value of the activation energy for high temperature deformation close to 175 kJ/mol, in line with those calculated by following the same procedure in AZ31 and ZM21. Partial or complete recrystallization of the deformed structure was observed at 350 and 400°C respectively. Grain growth occurred after recrystallization in the samples tested at 450°C.

Info:

Periodical:

Materials Science Forum (Volumes 604-605)

Edited by:

Marcello Cabibbo and Stefano Spigarelli

Pages:

212-222

DOI:

10.4028/www.scientific.net/MSF.604-605.212

Citation:

S. Spigarelli et al., "Hot Working of the ZEK200 Magnesium Alloy", Materials Science Forum, Vols. 604-605, pp. 212-222, 2009

Online since:

October 2008

Export:

Price:

$35.00

In order to see related information, you need to Login.