Article ID Journal Published Year Pages File Type
1500788 Scripta Materialia 2011 4 Pages PDF
Abstract

The microstructure and mechanical properties of extruded Mg94Ni3Y1.5CeMM1.5 alloy were evaluated between 250 and 400 °C. The alloy exhibited superplasticity between 300 and 400 °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.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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