Lattice Defect Research by Kossel Technique and Deformation Analysis

  • Masataka Umeno
  • Hideaki Kawabe
  • Gunji Shinoda
Conference paper


An electron probe microanalyzer (EPMA) was applied for the deformation analysis of aluminum single crystals. The lattice distortions caused by tensile stresses were observed by Kossel patterns, which are sensitive in their change of shape to lattice distortion. The effects of lattice distortion would appear as splitting, tearing, bending, broadening, disappearance, and shift of Kossel lines. This distortion behavior can be analyzed successfully. The inhomogeneities and anisotropy appearing on every line were explained by the crystallographic consideration of slip mechanisms. The lattice distortions and corresponding changes in Kossel patterns depend on the direction of elongation; the deformation modes of those crystals which show typical fcc behavior in stress—strain curves can be reasonably explained by a fragmentation model. It was also found that there are some portions in Kossel patterns where some specific Kossel lines, i.e., {200} and {111}, are very sensitive to lattice deformation.


Slip Plane Lattice Distortion Fragmentation Model Stereographic Projection Aluminum Single Crystal 
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Copyright information

© Springer Science+Business Media New York 1966

Authors and Affiliations

  • Masataka Umeno
    • 1
  • Hideaki Kawabe
    • 1
  • Gunji Shinoda
    • 1
  1. 1.Osaka UniversityMiyakojima, OsakaJapan

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