Study on the formation of cubic texture in Ni-7 at.% W alloy substrates by powder metallurgy routes

Yue Zhao, HongLi Suo, YongHua Zhu, Jean-Claude Grivel, Mangmang Gao, Lin Ma, RuiFen Fan, Min Liu, Yuan Ji, MeiLing Zhou

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    One of the main challenges for coated conductor applications is to produce sharp cubic textured alloy substrates with high strength and low magnetism. In this work, the cubic textured Ni–7 at.% W substrates were prepared from different powder metallurgy ingots by rolling-assisted biaxially textured substrate processing. The fabrication processes of cubic texture in the Ni–7 at.% W tapes by two powder metallurgy routes are described in detail. Through the optimized process, full width at half maximum values of 6.7° and 5.0° were obtained, as estimated by X-ray (1 1 1) phi scan and (2 0 0) rocking curve in the textured Ni–7 at.% W tape, respectively. By electron backscattering diffraction (EBSD) analysis, the percentage of the cubic textured component in the Ni–7 at.% W tape surface was found to reach 97.0% within a tolerance angle smaller than 10°. Moreover, the formation mechanism of the cubic texture in the Ni–7 at.% W tape were also investigated by EBSD. Particular attention was focused on the difference in the texture components along the thickness of the partially recrystallized samples.
    Original languageEnglish
    JournalActa Materialia
    Volume57
    Issue number3
    Pages (from-to)773-781
    ISSN1359-6454
    DOIs
    Publication statusPublished - 2009

    Keywords

    • Materials research
    • Superconducting materials for the energy sector

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