Diffusion in ultrafine-grained Al-Mg alloys

T. Fujita, H. Hasegawa, Z. Horita, T. G. Langdon

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)


    Grain sizes of less than 1 μm were produced in Al-0.2%Sc (or 0.2%Zr) and Al-3%Mg-0.2%Sc (or 0.2%Zr) alloys using the technique of equal-channel angular pressing (ECAP). These alloys were coupled and they were subjected to diffusion annealing at a temperature in the range of 523 to 773 K. Interdiffusion coefficients were determined from the concentration gradients measured across the interface and a comparison was made with those of coarse-grained diffusion couples. Interdiffusion coefficients of the fine-grained couples are significantly higher than those of the coarse-grained couples at lower annealing temperatures. Grain boundary diffusion coefficients of Mg in Al were deduced from the measurements.

    Original languageEnglish
    Pages (from-to)1205-1210
    Number of pages6
    JournalDefect and Diffusion Forum
    Issue number194-199 PART 2
    Publication statusPublished - 2001

    All Science Journal Classification (ASJC) codes

    • Radiation
    • General Materials Science
    • Condensed Matter Physics


    Dive into the research topics of 'Diffusion in ultrafine-grained Al-Mg alloys'. Together they form a unique fingerprint.

    Cite this