Annealing behavior of FeNi alloy processed by high-pressure torsion

Seungwon Lee, Zenji Horita

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

    6 Citations (Scopus)


    An Fe-50at %Ni alloy was processed by high-pressure torsion (HPT) and annealed at lower homologous temperatures. Vickers microhardness and microstructural evolutions were examined with respect to the annealing time. Disks with 10 mm diameters having 0.85 mm thicknesses were subjected to HPT under a pressure of 6 GPa for 1-10 revolutions at a rotation speed of 1 rpm. The annealing after the HPT processing was conducted at homologous temperatures of ∼0.3 for up to 40 days. The hardness increases with straining and saturates to a constant level of ∼400 Hv at large equivalent strain. Microstructure analysis using XRD revealed that there was a peak corresponding to an α (Fe, Ni) phase.

    Original languageEnglish
    Title of host publicationNanomaterials by Severe Plastic Deformation, NanoSPD5
    PublisherTrans Tech Publications Ltd
    Number of pages6
    ISBN (Print)9783037850077
    Publication statusPublished - 2011

    Publication series

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

    All Science Journal Classification (ASJC) codes

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


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