Formation of M23C6-type precipitates and chromium-depleted zones in austenite stainless steel

Kenji Kaneko, Tatsuya Fukunaga, Kazuhiro Yamada, Nobuo Nakada, Masao Kikuchi, Zineb Saghi, Jon S. Barnard, Paul A. Midgley

    Research output: Contribution to journalArticlepeer-review

    162 Citations (Scopus)

    Abstract

    Formation of M23C6 carbides and chromium-depleted zones in commercially available type 304L stainless steel were investigated by in situ transmission electron microscopy and analytical transmission electron microscopy. It was found that each individual small M23C6 carbide starts to grow with a clear orientation relationship with the matrix, and film-like carbide was subsequently observed at the interfaces with asymmetric Cr-depleted zones. From these experimental results, a model describing the precipitation of M23C6 and the formation of the Cr-depleted zone was proposed.

    Original languageEnglish
    Pages (from-to)509-512
    Number of pages4
    JournalScripta Materialia
    Volume65
    Issue number6
    DOIs
    Publication statusPublished - Sep 2011

    All Science Journal Classification (ASJC) codes

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

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