Compression behavior of inter-particle regions in high-strength Al84Ni7Gd6Co3 alloy

Z. Wang, R. T. Qu, K. G. Prashanth, J. Eckert, S. Scudino

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)

    Abstract

    We have studied the deformation behavior of the inter-particle regions using a high strength nanostructured alloy (Al84Ni7Gd6Co3) produced by hot pressing of amorphous powders. The inter-particle regions, including soft aluminum and pores, are relatively weak compared to the consolidated particles. Plastic deformation, crack branching and deflection are observed in the inter-particle regions, giving rise to the arrest of cracks. High density of stacking faults and/or nanotwins are formed in the inter-particle regions after plastic deformation. The fracture mode of the Al84Ni7Gd6Co3 nanostructured alloy changes from the inter-particle failure to trans-particle failure with decreasing volume fraction of the inter-particle regions.

    Original languageEnglish
    Pages (from-to)25-28
    Number of pages4
    JournalMaterials Letters
    Volume185
    DOIs
    Publication statusPublished - 2016 Dec 15

    Keywords

    • Deformation and fracture
    • Metals and alloys
    • Sintering
    • Triple point

    ASJC Scopus subject areas

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

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