Grain orientation dependent Nb-Ti microalloying mediated surface segregation on ferritic stainless steel

    Tutkimustuotos: ArtikkeliScientificvertaisarvioitu

    14 Sitaatiot (Scopus)
    1 Lataukset (Pure)

    Abstrakti

    Surface segregation and oxide formation anisotropy on Ti-Nb stabilized ferritic stainless steel (EN 1.4521) were studied by XPS and Electron Backscatter Diffraction. Competitive surface segregation of Si, Nb and Ti was initiated at ∼550. °C, and segregation was favored to the open surface sites of 〈111〉 oriented grains. Furthermore, the surface segregation of Cr was strongly limited at the locations of stable Ti(CN)- and (NbTi)C-type precipitates. Consequently, the oxidation resistance of stainless steels can be enhanced cost-efficiently, without alloy additions, by optimizing the microstructure to facilitate the fast and uniform growth of protective oxide scale.

    AlkuperäiskieliEnglanti
    Sivut204-213
    JulkaisuCorrosion Science
    Vuosikerta112
    DOI - pysyväislinkit
    TilaJulkaistu - marrask. 2016
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

    Julkaisufoorumi-taso

    • Jufo-taso 3

    !!ASJC Scopus subject areas

    • Materials Science(all)
    • Chemical Engineering(all)
    • Chemistry(all)

    Sormenjälki

    Sukella tutkimusaiheisiin 'Grain orientation dependent Nb-Ti microalloying mediated surface segregation on ferritic stainless steel'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

    Siteeraa tätä