Significance of Microstructural Control for Superplastic Deformation and Forming

Yan Ma, Minoru Furukawa, Zenji Horita, Minoru Nemoto, Ruslan Z. Valiev, Terence G. Langdon

    Research output: Contribution to journalArticlepeer-review

    92 Citations (Scopus)

    Abstract

    High tensile ductility may be achieved in metallic alloys over a limited range of strain rates at elevated temperatures when the grain size is very small (typically less than -10 μm). These superplastic materials are often suitable for industrial forming operations. This paper considers the possibility of attaining a superplastic forming capability at lower temperatures and/or faster strain rates by a reduction of the grain size into the submicrometer range. Procedures are available for the fabrication of ultrafine-grained materials by imposing a very high plastic strain. These procedures are examined with reference to results obtained using Al-Mg solid solution alloys.

    Original languageEnglish
    Pages (from-to)336-339
    Number of pages4
    JournalMaterials Transactions, JIM
    Volume37
    Issue number3
    DOIs
    Publication statusPublished - 1996

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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