期刊
MATERIALS LETTERS
卷 59, 期 18, 页码 2267-2270出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2004.09.061
关键词
mechanical properties; microstructure; equal channel angular extrusion (ECAE); AZ31 Mg alloy
A new equal channel angular extrusion (ECAE) processing, two-step ECAE, was applied to control the microstructure and mechanical properties of AZ31 Mg alloy. The ultra-fine grain size of 0.5 mu m has been produced, and both the ductility and yield stress of the alloy were significantly increased after the processing, which is ascribed to grain refinement as well as incomplete dynamic recovery and recrystallization during the second-step ECAE at 453 K. (c) 2005 Elsevier B.V. All rights reserved.
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