Effect of Carbon Addition on Microstructure and Heterogeneous Deformation Behavior of 18％Ni Martensitic Steel

DOI Open Access

Bibliographic Information

Other Title
  • 18％Niマルテンサイト鋼の組織と不均一変形挙動に及ぼす炭素添加の影響

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Description

<p>The effect of carbon on the heterogeneous deformation behavior of a martensite was investigated by multiscale strain distribution analysis using the digital image correlation method. Specially, 18％Ni martensitic steels with and without carbon（0.15C steel and C-free steel, respectively）were studied. Low-magnification observation showed that in both steels, a macroscopic strain distribution was caused by the shape of the specimen. However, high-magnification observation revealed that the strain was concentrated in specific blocks in 0.15C steel, suggesting that its heterogeneous deformation behavior depends on the martensitic structure. Thus, addition of carbon in 18％Ni steel was concluded to cause preferential plastic deformation of the blocks owing to an in-lath plane slip system, which tends to promote heterogeneous deformation.</p>

Journal

  • NETSUSHORI

    NETSUSHORI 63 (4), 192-198, 2023

    The Japan Society for Heat Treatment

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Details 詳細情報について

  • CRID
    1390860222068784384
  • DOI
    10.14940/netsushori.63.192
  • ISSN
    21884064
    02880490
  • Text Lang
    ja
  • Article Type
    journal article
  • Data Source
    • JaLC
    • KAKEN
  • Abstract License Flag
    Disallowed

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