Achieving a superplastic forming capability through severe plastic deformation

Cheng Xu, Minoru Furukawa, Zenji Horita, Terence G. Langdon

    Research output: Contribution to journalArticlepeer-review

    31 Citations (Scopus)

    Abstract

    Processing by severe plastic deformation (SPD) leads to very significant grain refinement in metallic alloys. Furthermore, if these ultrafine grains are reasonably stable at elevated temperatures, there is a potential for achieving high tensile ductilities, and superplastic elongations, in alloys that are generally not superplastic. In addition, the production of ultrafine grains leads to the occurrence of superplastic flow at strain rates that are significantly faster than in conventional alloys so that processing by SPD introduces the possibility of using these alloys for the rapid fabrication of complex parts through superplastic forming operations. This paper examines the development of superplasticity in various aluminum alloys processed by equal-channel angular pressing (ECAP).

    Original languageEnglish
    Pages (from-to)359-364
    Number of pages6
    JournalAdvanced Engineering Materials
    Volume5
    Issue number5
    DOIs
    Publication statusPublished - May 1 2003

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics

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