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

    13 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

    Keywords

    • Magnesium alloys
    • Deformation microstructure
    • Mechanical properties
    • Superplasticity
    • Particle refinement

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