Microstructure Evolution of Mg-Y-Nd-Zr Alloy during High Temperature Deformation

Abstract:

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The variation of the flow stress and the microstructural evolution during hot deformation at different test temperatures and strain-rates are studied. During hot deformation, dynamical recrystallization did not occur completely; after annealing at 523K, microstructural changes due to static recrystallization and small grain sizes of several micrometers and fine nanometer-precipitates can be attained. The stress exponent (n) and the activation energy (Q) for high temperature deformation have been evaluated and the deformation mechanisms at different temperature have also been discussed.

Info:

Periodical:

Materials Science Forum (Volumes 488-489)

Edited by:

W.Ke, E.H.Han, Y.F.Han, K.Kainer and A.A.Luo

Pages:

269-274

DOI:

10.4028/www.scientific.net/MSF.488-489.269

Citation:

W. N. Tang et al., "Microstructure Evolution of Mg-Y-Nd-Zr Alloy during High Temperature Deformation", Materials Science Forum, Vols. 488-489, pp. 269-274, 2005

Online since:

July 2005

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Price:

$35.00

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