• Title of article

    On the measurement of the nanohardness of the constitutive phases of TRIP-assisted multiphase steels

  • Author/Authors

    Furnémont، نويسنده , , Q. and Kempf، نويسنده , , James M. and Jacques، نويسنده , , P.J. and Gِken، نويسنده , , M. and Delannay، نويسنده , , F.، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 2002
  • Pages
    7
  • From page
    26
  • To page
    32
  • Abstract
    The nanohardness of the phases present in the microstructure of two TRIP (for TRansformation Induced Plasticity)-assisted multiphase steels differing by their silicon content was measured by nanoindentation in an atomic force microscope. It is observed that the softest phase in both steels is the ferritic matrix, followed by bainite, austenite and martensite. It is also shown that the silicon content of the steel grades is responsible for an increase of the hardness of the ferritic matrix due to solid solution strengthening. Finally, the influence of the preparation mode of the surface prior to the nanoindentation measurements has been investigated. An electropolishing stage after mechanical polishing is acceptable to allow valuable nanohardness measurements.
  • Keywords
    nanohardness , multiphase microstructure , TRIP-assisted multiphase steels
  • Journal title
    MATERIALS SCIENCE & ENGINEERING: A
  • Serial Year
    2002
  • Journal title
    MATERIALS SCIENCE & ENGINEERING: A
  • Record number

    2140688