Journal
SCRIPTA MATERIALIA
Volume 64, Issue 1, Pages 33-36Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2010.08.059
Keywords
Magnesium alloys; Deformation microstructure; Mechanical properties; Superplasticity; Particle refinement
Categories
Funding
- MEC [MAT2003-02845, MAT2006-11731]
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The microstructure and mechanical properties of extruded Mg94Ni3Y1 5CeMM1 (5) alloy were evaluated between 250 and 400 degrees C The alloy exhibited superplasticity between 300 and 400 degrees C Superplastic deformation was characterized by the refinement of coarse second-phase particles and their continuous redistribution in the magnesium matrix The equiaxed structure of the magnesium matrix in the deformed samples as well as the stress exponent close to 2 indicated that grain boundary sliding was the mechanism controlling the superplastic deformation (C) 2010 Acta Materialia Inc Published by Elsevier Ltd All rights reserved
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