Achieving superplasticity in light alloys through the application of severe plastic deformation

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

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The light alloys, such as aluminum and magnesium, have considerable potential for use in the automotive industry. However, the superplastic forming of conventional alloys, where the grain sizes are often ∼5 μm or larger, tends to occur at strain rates which are generally too slow for use in the processing of high volumes of components for use in the fabrication of automobiles or consumer products. This limitation may be removed, and the superplastic forming operation achieved at a faster rate, by reducing the grain size of the alloy to the submicrometer or even the nanometer level. This paper describes the process of achieving grain refinement and superplastic properties in representative Al and Mg alloys using a procedure in which the alloys are subjected to severe plastic deformation. The results show that this processing technique is capable of producing excellent superplastic properties in alloys that are nominally not superplastic.

    Original languageEnglish
    Title of host publicationAdvances in Superplasticity and Superplastic Forming
    EditorsE.M. Taleff, P.A. Friedman, P.E. Krajewski, R.S. Mishra, J.G. Schrith
    Pages193-200
    Number of pages8
    Publication statusPublished - Jul 13 2004
    EventAdvances in Superplasticity and Superplastic Forming - Charlotte, NC., United States
    Duration: Mar 14 2004Mar 18 2004

    Publication series

    NameAdvances in Superplasticity and Superplastic Forming

    Other

    OtherAdvances in Superplasticity and Superplastic Forming
    Country/TerritoryUnited States
    CityCharlotte, NC.
    Period3/14/043/18/04

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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