Citation
Boehlert, Carl and Chen, Zhe and Gutiérrez Urrutia, Iván and Llorca Martinez, Francisco Javier and Pérez Prado, María Teresa
(2013).
On the Controversy About the Presence of Grain Boundary Sliding in Mg AZ31.
"Materials Science Forum", v. 735
;
pp. 22-25.
ISSN 0255-5476.
https://doi.org/10.4028/www.scientific.net/MSF.735.22.
Abstract
Highly-textured, rolled AZ31 sheet material shows a
significant drop in the plastic anisotropy (r-value; r=εw/εt) in tension between 25°C and 200°C. This behavior
was initially explained as a result of the increased activity of
non-basal slip with increased temperature. Other
authors suggested, however, that the mechanism resp
onsible for this phenomenon was the activation
of grain boundary sliding (GBS). Here, in-situ ten
sile tests have been carried out in an SEM at
various temperatures in order to obtain further evi
dence of the role of GBS during moderate to high
temperature deformation of Mg alloys, which remains
highly controversial.
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