TEM & EBSD study on deformation behavior of high nitrogen austenltic Fe-18Cr-18Mn-2Mo-0.9N stainless steel

Tae Ho Lee, Sung Joon Kim, Suk Hoon Kang, Kyu Hwan Oh, Setsuo Takaki

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)

    Abstract

    Deformation behavior of high nitrogen austenitic Fe-18Cr-18Mn-2Mo-0.9N stainless steel was investigated utilizing electron back-scattered diffraction (EBSD) and transmission electron microscopy (TEM). During deformation, the <110> grains rotated and the trace of these grains moved towards into the dodecahedral plane (the line connecting (001) and (111) planes). Misorientation mapping in EBSD showed that the special boundaries (almost Σ3) gradually diminished whereas the low-angle boundaries were developed. TEM observation showed that (i) the low-angle boundaries developed corresponded to the deformation twinning with {111}<112> component, (ii) the deformation twinning showed the strong orientation dependence relative to tensile axis, and (iii) the deformed microstructure was characterized by extended stacking faults, planar dislocation array in low strain regime, and by well-developed deformation twinning in high strain region, respectively.

    Original languageEnglish
    Title of host publicationAdvances in Nanomaterials and Processing - IUMRS - ICA - 2006 International Conference in Asia
    PublisherTrans Tech Publications Ltd
    Pages1333-1336
    Number of pages4
    EditionPART 2
    ISBN (Print)3908451310, 9783908451310
    DOIs
    Publication statusPublished - 2007
    EventIUMRS International Conference in Asia 2006, IUMRS-ICA 2006 - Jeju, Korea, Republic of
    Duration: Sep 10 2006Sep 14 2006

    Publication series

    NameSolid State Phenomena
    NumberPART 2
    Volume124-126
    ISSN (Print)1012-0394

    Other

    OtherIUMRS International Conference in Asia 2006, IUMRS-ICA 2006
    Country/TerritoryKorea, Republic of
    CityJeju
    Period9/10/069/14/06

    All Science Journal Classification (ASJC) codes

    • Atomic and Molecular Physics, and Optics
    • Materials Science(all)
    • Condensed Matter Physics

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