Refinement of the microstructure during superplastic deformation of extruded Mg94Ni3Y1.5CeMM1.5 alloy

Pablo Pérez, Mohamed Eddahbi, Sergio Gonzalez Sanchez, Gerardo Garcés, Paloma Adeva

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)33-36
JournalScripta Materialia
Volume64
Issue number1
DOIs
Publication statusPublished - Jan 2011

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