Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1500788 | Scripta Materialia | 2011 | 4 Pages |
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
Authors
P. Pérez, M. Eddahbi, S. González, G. Garcés, P. Adeva,