Blunt corners of WC grains induced by lowering carbon content in WC-12mass%Co cemented carbides

I. Sugiyama, M. Goto, T. Taniuchi, F. Shirase, T. Tanase, K. Okada, Y. Ikuhara, T. Yamamoto

    Research output: Contribution to journalArticlepeer-review

    13 Citations (Scopus)

    Abstract

    Habit planes at WC/Co interfaces were investigated from a viewpoint of carbon content in WC-12mass%Co cemented carbides by transmission electron microscopy (TEM). WC/Co interfaces typically consist of (0001) and {101̄0} habit planes with blunt corners, which are very close to {101̄1} habit plane. The sizes of the blunt corners increase as the carbon content decrease. The expansions of blunt corners are due to the change in interface energy caused by the variation of the carbon content. The change in interface energy is discussed in terms of the incoherency between the (0001) planes of the WC grains and the Co-phase.

    Original languageEnglish
    Pages (from-to)4413-4419
    Number of pages7
    JournalJournal of Materials Science
    Volume46
    Issue number12
    DOIs
    Publication statusPublished - 2011 Jun

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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