High-pressure torsion using ring specimens

Yosuke Harai, Yuki Ito, Zenji Horita

    Research output: Contribution to journalArticlepeer-review

    132 Citations (Scopus)


    A facility is developed for high-pressure torsion (HPT) using ring samples and the results are compared with those of conventional disk HPT samples. With pure Al (99.99%), both types of HPT are consistent. When hardness values are plotted against equivalent strain, they fall on a single line having a maximum at a strain of ∼2 followed by a steady-state at a strain of ∼6 or more where hardness remains constant with straining.

    Original languageEnglish
    Pages (from-to)469-472
    Number of pages4
    JournalScripta Materialia
    Issue number6
    Publication statusPublished - Mar 2008

    All Science Journal Classification (ASJC) codes

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


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