Severe plastic deformation under high pressure for production of superplastic materials

Zenji Horita

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

    1 Citation (Scopus)

    Abstract

    Grain refinement is an important prerequisite for advent of superplasticity. In particular, as the grain size is smaller, the superplasticity appears at higher strain rates and lower temperatures. Severe plastic deformation (SPD) is a useful process for achieving significant grain refinement. This presentation shows that applicability of the SPD process is enhanced when it is operated under high pressure through high-pressure torsion (HPT) and high-pressure sliding (HPS). It is demonstrated that commercially available conventional alloys but less ductile alloys such as Mg alloys, age-hardenable high-strength Al alloys (A2024, A7075) and Ti alloys become superplastic after processing by HPT or HPS.

    Original languageEnglish
    Title of host publicationSuperplasticity in Advanced Materials, ICSAM 2015
    EditorsEiichi Sato, Goroh Itoh, Junya Kobayashi, Yoshimasa Takayama, Koichi Kitazono, Koji Morita, Takaomi Itoi
    PublisherTrans Tech Publications Ltd
    Pages287-293
    Number of pages7
    ISBN (Print)9783038356721
    DOIs
    Publication statusPublished - 2016
    Event12th International Conference on Superplasticity in Advanced Materials, ICSAM 2015 - Tokyo, Japan
    Duration: Sep 7 2015Sep 11 2015

    Publication series

    NameMaterials Science Forum
    Volume838-839
    ISSN (Print)0255-5476
    ISSN (Electronic)1662-9752

    Other

    Other12th International Conference on Superplasticity in Advanced Materials, ICSAM 2015
    Country/TerritoryJapan
    CityTokyo
    Period9/7/159/11/15

    All Science Journal Classification (ASJC) codes

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

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