Nature of delamination cracks in pearlitic steels

Masaki Tanaka, Hayato Saito, Motoki Yasumaru, Kenji Higashida

    Research output: Contribution to journalArticlepeer-review

    21 Citations (Scopus)

    Abstract

    Wire-drawn fully pearlitic steel was twisted at room temperature. As a result, a delamination crack propagated along the longitudinal direction of the wire. Backscattered electron and transmission electron microscopy images indicated that the cementite lamellae beneath the delamination crack had vanished. In addition, a fine-grained structure was observed. This indicated that the delamination fracture was not a brittle one but a shear one associated with local severe plastic deformation.

    Original languageEnglish
    Pages (from-to)32-36
    Number of pages5
    JournalScripta Materialia
    Volume112
    DOIs
    Publication statusPublished - Feb 2016

    All Science Journal Classification (ASJC) codes

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

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