Stereological substructure analysis in hot-deformed metals from TEM-images |
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| Authors: | M Barthel P Klimanek D Stoyan |
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| Institution: | 1. Institute of Solid State Physics and Electron Microscopy, Acad. Sci. of the GDR, Weinberg 2, 4020, Halle, Saale, GDR
2. Section of Metallurgy and Materials Technology, Academy of Mining, P. O. Box 47, 9200, Freiberg, GDR
3. Section of Mathematics, Academy of Mining, P. O. Box 47, 9200, Freiberg, GDR
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| Abstract: | In the present paper three possible methods of stereological evaluation of particle arrangements are discussed: determination of mean particle diameters by means of the so-called Poisson-Voronoi mosaics, evaluation of the spatial particle-diameter distribution using the interception-length method of Spektor and determination of the spatial distribution of grain or subgrain diameters on the basis of an intercept-area method of Saltykov. Practical application of the procedures is demonstrated by results which were obtained from hot-deformation of several material under different hot-working conditions. It can be shown that stereological interpretation of TEM images renders refined conclusions concerning the mechanisms of structure changes occurring in hot-deformation. |
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