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  • Microstructure and ductility of Fe28Cr16Co alloy with additions of silicon, molybdenum, titanium and aluminium
    Vodopivec, Franc, 1931-2021 ...
    The microstructure of several alloys with base composition Fe28Cr16Co and addition up to 1.5% silicon, 0.32% titanium, 2.34% molybdenum and 1% aluminium was investigated in the temperature range 500 ... to 1250°C bu optical microscopy, hardness measurements and dilatomery. Also, ductility and wirw drawing tests were carried out on some alloys. The addition of silicon, titanium, molybdenium or 0.13% Al does not prevent the formation of ▫$\gamma$▫phase up to the temperature 1250°C and the formation of phase ▫$\sigma$▫ in the temperature range 700 to approximately 1000°C. The addition of 1% Al prevents the formation of phase ▫$\sigma$▫ and shifts the temperature of formation of phase ▫$\gamma$▫ to 1158°C. The addition of different elements does not affect significantly the spinodal decomposition of phase ▫$\alpha$▫. At increased temperature an interval of sufficient ductility for deformation by wire drawing was established. The ductility was greatly improved if the microstructure consisted of small inclusions of phase ▫$\gamma$▫ in a matrix of phase ▫$\alpha$▫, probably because the deformation by twinning was hindered. However, insufficient magnetic properties were obtained also after 80% of deformation.
    Vir: Zeitschrift für Metallkunde : international journal of materials research. - ISSN 0044-3093 (Bd. 85, Heft. 3, 1994, str. 207-212)
    Vrsta gradiva - članek, sestavni del
    Leto - 1994
    Jezik - angleški
    COBISS.SI-ID - 17097221

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