Direct observation of the shear APB interface in Fe3Al by HREM

D. Shindo, M. H. Yoo, S. Hanada, K. Hiraga

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    11 Citations (Scopus)


    Atomic arrangements at a nearest neighbour anti-phase boundary (APB), on the (1(formula presented)0) plane, connected by 1/2[111] superpartials in Fe3Al were directly observed in an edge-on view using high resolution electron microscopy (HREM). In HREM images, Al atom positions projected along the [110] direction were revealed as white dots. A single step on the APB interface, which is related to a jog on the partial dislocation line, was identified directly from the geometrical patterns of the white dots. Detailed comparisons of the experimental data with simulated images indicated that the apparent relaxation of atomic rows at the APB is very localized to its interface even at the step.

    Original languageEnglish
    Pages (from-to)1281-1290
    Number of pages10
    JournalPhilosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
    Issue number6
    Publication statusPublished - 1991 Dec

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Materials Science(all)
    • Condensed Matter Physics
    • Physics and Astronomy (miscellaneous)
    • Metals and Alloys


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