Article ID Journal Published Year Pages File Type
1502550 Scripta Materialia 2009 4 Pages PDF
Abstract

The microstructure evolution of Mg–2.4 at.% Zn binary alloy was examined during extrusion at low temperature. Fine-grained structures were formed near the grain boundary due to dynamic recrystallization. Rod-shaped precipitates were also formed before the extrusion and were elongated and/or torn off by the strain; the precipitate morphology changed from rods to spheres. The spherical precipitates pin the dislocations; they are the nucleation site for new grains and promote recrystallization.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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