High Strength and Electrical Conductivity of Al-Fe Alloys Produced by Synergistic Combination of High-Pressure Torsion and Aging

Jorge M. Cubero-Sesin, Makoto Arita, Zenji Horita

    Research output: Contribution to journalArticlepeer-review

    22 Citations (Scopus)

    Abstract

    A synergistic combination of high-pressure torsion (HPT) and artificial aging was attempted in Al-Fe alloys to achieve high strength and high electrical conductivity. HPT produced an ultrafine-grained structure and supersaturation of Fe in the matrix, resulting in high strength above 500 MPa. Aging after the HPT processing increased the electrical conductivity well over 50 IACS% while simultaneously increasing the yield strength above 600 MPa via precipitation of dissolved Fe. The results demonstrate that Al containing a low fraction of Fe (2 wt%) should be a good candidate for a high strength, light weight, and high-electrical-conductive material.

    Original languageEnglish
    Pages (from-to)1792-1803
    Number of pages12
    JournalAdvanced Engineering Materials
    Volume17
    Issue number12
    DOIs
    Publication statusPublished - Dec 1 2015

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics

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