Effect of tensile test specimen thickness on deformation energy for duplex stainless steel

Takuya Hirashima, Masatoshi Aramaki, Masayuki Yamamoto, Kyono Yasuda, Shinji Munetoh, Osamu Furukimi

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    Effect of specimen thickness on ductile fracture energy for ferrite-austenite duplex stainless steel was investigated by using tensile strain test. It was revealed that both uniform and local deformation energies decreased with the decrease in the specimen thickness. Voids in a thicker specimen can be easily formed at the lower plastic equivalent strain because of the steep increase in the triaxiality. The decrease in the local deformation energy was due to the void growth near the fracture surface depending on the steep increase in the stress triaxiality.

    Original languageEnglish
    Pages (from-to)308-314
    Number of pages7
    JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
    Volume101
    Issue number5
    DOIs
    Publication statusPublished - 2015

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics
    • Physical and Theoretical Chemistry
    • Metals and Alloys
    • Materials Chemistry

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