Microstructural investigation of oxidized complex refractory high entropy alloys

Kai Chi Lo, An Chou Yeh, Hideyuki Murakami

    Research output: Contribution to journalArticle

    Abstract

    The microstructures of two newly developed refractory high entropy alloys were examined after isothermal oxidation at 1200°C for 10 hours. Scanning electron microscope analysis showed the formation of aluminosilicate layer on the sample surface, and the structure of oxide layers appears to be greatly affected by the content of Al and V. With increased Al content and decreased V content, the size of pores within the internal oxidation zone was decreased. Future directions to improve the oxidation resistance of complex refractory alloys were proposed.

    Original languageEnglish
    Pages (from-to)556-562
    Number of pages7
    JournalMaterials Transactions
    Volume59
    Issue number4
    DOIs
    Publication statusPublished - 2018 Jan 1

    Fingerprint

    Refractory alloys
    Internal oxidation
    Aluminosilicates
    Oxidation resistance
    refractories
    Refractory materials
    Oxides
    Entropy
    Electron microscopes
    entropy
    Scanning
    Oxidation
    Microstructure
    oxidation
    oxidation resistance
    electron microscopes
    porosity
    microstructure
    scanning
    oxides

    Keywords

    • High entropy alloys
    • Oxidation
    • Refractory alloys

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

    Cite this

    Microstructural investigation of oxidized complex refractory high entropy alloys. / Lo, Kai Chi; Yeh, An Chou; Murakami, Hideyuki.

    In: Materials Transactions, Vol. 59, No. 4, 01.01.2018, p. 556-562.

    Research output: Contribution to journalArticle

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