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Three-Dimensional Reconstruction of Fracture Surface Using Area Matching Algorithm(Physics, Processes, Instruments & Measurements)

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Abstract

A system for the reconstruction of three-dimensional topography from stereoscopic SEM micrographs has been developed. From the relative displacement between the corresponding points measured by an area based matching procedure, the elevation of overall surface was calculated on the basis of the stereo-photographic principle, and digital elevation models (DEMs) of investigated surfaces were reconstructed on the monitor of a personal computer. The system was applied to an impact fracture surface of type 329J4L duplex stainless steel tested at 273K. The reconstructed images revealed that several cracks propagated through the ductile and brittle regions parallel to each other, keeping about 10μm intervals in elevation among them. The reconstruction of the cleavage fracture surface of type 444 ferritic stainless steel was made, and cleavage steps of the river pattern which the elevations are greater than the minimum elevation value can be detected and reconstructed in this system

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Details

  • CRID
    1571417127256326784
  • NII Article ID
    110006486101
  • NII Book ID
    AA00867058
  • ISSN
    03874508
  • Text Lang
    en
  • Data Source
    • CiNii Articles

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