| Popis: |
The electron backscatter diffraction (EBSD) technique and EBSD-based orientation microscopy (ORM) are very powerful techniques for the comprehensive characterization of crystalline microstructures in the scanning electron microscope. ORM delivers accurate and quantitative data about the morphology and crystallography of a material, e.g. shape, size and neighbourhood relations of crystals, crystallographic phases, and crystallographic texture and misorientation distribution. By combining two-dimensional EBSD-based ORM with serial sectioning the technique can be extended to a three-dimensional technique. In addition to the morphological description of microstructures, this technique allows the comprehensive crystallographic characterization of grain boundaries and the quantification of deformation structures in terms of densities of geometrically necessary dislocations. The present text gives an overview on EBSD applications to the study of phase transformations in steels and briefly describes future developments of the technique. |
