Achieving exceptional superplasticity in a bulk aluminum alloy processed by high-pressure torsion

Zenji Horita, Terence G. Langdon

    Research output: Contribution to journalArticlepeer-review

    86 Citations (Scopus)

    Abstract

    Bulk specimens of an aluminum-magnesium-scandium alloy, in the form of small cylinders, were processed by high-pressure torsion at room temperature. Following processing, the microstructure was inhomogeneous with larger grains in the center and ultrafine grains of ∼130 nm at the periphery. Tensile testing after processing revealed the potential for achieving exceptional superplastic elongations but the measured elongations depended upon the positions of the specimens within the cylinder. The highest tensile elongation recorded in these experiments was 1600%.

    Original languageEnglish
    Pages (from-to)1029-1032
    Number of pages4
    JournalScripta Materialia
    Volume58
    Issue number11
    DOIs
    Publication statusPublished - Jun 2008

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys

    Fingerprint

    Dive into the research topics of 'Achieving exceptional superplasticity in a bulk aluminum alloy processed by high-pressure torsion'. Together they form a unique fingerprint.

    Cite this