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  • Characterization of the carbides and the martensite phase in powder-metallurgy high-speed steel
    Godec, Matjaž, 1961- ...
    A microstructural characterization of the powder-metallurgy high-speed-steel S390 Microclean was performed based on an elemental distribution of the carbide phase as well as crystallographic ... analyses. The results showed that there were two types of carbides present: vanadium-rich carbides, which were not chemically homogeneous and exhibited a tungsten-enriched or tungsten-depleted central areač and chemically homogeneous tungsten-rich M[sub]{6}C-type carbides. Despite the possibility of chemical onhomogenities, the crystallographic orientation of each of the carbides was shown to be uniform. Using electron backscatter diffraction the vanadium-rich carbides were determined to be either cubic VC or hexagonal V[sub]{6}C[sub]{5}, while the tungsten-rich carbides were M[sub]{6}C. The electron backscatter diffraction results were also verified using X-ray diffraction. Several electron backscatter diffraction pattern maps were acquired in order to define the fraction of each carbide phase as well as the amount of martensite phase. The fraction of martensite was estimated using band-contrast images, while the fraction of carbides was calculated using the crystallographic data.
    Vir: Materials characterization. - ISSN 1044-5803 (Vol. 61, no. 4, April 2010, str. 452-458)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2010
    Jezik - angleški
    COBISS.SI-ID - 793770
    DOI

vir: Materials characterization. - ISSN 1044-5803 (Vol. 61, no. 4, April 2010, str. 452-458)
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