Determination of site occupancy of additives X (X = V, Mo, W and Ti) in the Nb-Cr-X Laves phase by ALCHEMI

H. Okaniwa, D. Shindo, M. Yoshida, T. Takasugi

    Research output: Contribution to journalArticlepeer-review

    46 Citations (Scopus)

    Abstract

    Atom location by channelling enhanced microanalysis (ALCHEMI) was carried out to investigate the site occupancy of additives X (X = V, Mo, W and Ti) in the Nb-Cr-X Laves phase. In order to make clear the detailed substitutional behavior of the additives, specimens with different compositions were prepared for each system. In the C15 structure of the Laves phase, fairly strong electron channelling effects were observed under two planar channelling conditions where the incident electron beams were nearly parallel to the (400) and (220) planes. It was shown that V prefers the Cr site, while Mo, W and Ti preferentially occupy the Nb site.

    Original languageEnglish
    Pages (from-to)1987-1992
    Number of pages6
    JournalActa Materialia
    Volume47
    Issue number6
    DOIs
    Publication statusPublished - 1999 Apr 23

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Ceramics and Composites
    • Polymers and Plastics
    • Metals and Alloys

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