In the paper, the authors present the history of stereology development in Poland from the 1930s until now. The authors concentrate on the talented scholars whose hard work, dedication, and enthusiasm contributed to popularizing stereological methods of quantitative assessment. From Hugo Steinhaus to now, the evolution and increase in popularity of stereology is briefly shown. The most significant achievements are described in more detail.
S-area of the object L-perimeter of the object l max-maximal overall dimensions of the object (distance between the most distant points of the object) l min-minimal overall dimensions of the object (perpendicular line to l max and such that the rectangle achieved comprises the object) L h-maximal diameter of the object horizontally L V-maximal diameter of the object vertically r min-minimal distance of the contour from the center of mass of the object R max-maximal distance of the contour from the center of mass of the object r i-distance of the object pixel from the center of mass of the object l i-minimal distance of the pixel from the object contour d i-distance of pixels from the center of mass n-amount of pixels of the contour i-pixels number of the object
Stereological description of dispersed microstructure is not an easy task and remains the subject of continuous research. In its practical aspect, a correct stereological description of this type of structure is essential for the analysis of processes of coagulation and spheroidisation, or for studies of relationships between structure and properties. One of the most frequently used methods for an estimation of the density Nv and size distribution of particles is the Scheil - Schwartz - Saltykov method. In this article, the authors present selected methods for quantitative assessment of ductile iron microstructure, i.e. the Scheil - Schwartz - Saltykov method, which allows a quantitative description of three-dimensional sets of solids using measurements and counts performed on two-dimensional cross-sections of these sets (microsections) and quantitative description of three-dimensional sets of solids by X-ray computed microtomography, which is an interesting alternative for structural studies compared to traditional methods of microstructure imaging since, as a result, the analysis provides a three-dimensional imaging of microstructures examined.
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