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Faculty of Metallurgy and Technology Travnička cesta 1, Zenica, University of Zenica , Zenica , Bosnia and Herzegovina
Institute of Functional Materials Campus D3.3, Saarbrücken, Saarland University , Saarbrücken , Germany
Institute of Functional Materials Campus D3.3, Saarbrücken, Saarland University , Saarbrücken , Germany
The results of two light optical tomographies (LOT) of two-phase steels are presented and compared in this paper. Two-phase steels show a microstructure consisting of a carbon-rich second phase and a ferritic matrix. In this work, microstructures are compared with a martensitic and a bainitic second phase. Tomographies are very important for material simulation and classification of different steels in 3D. Serial sectioning is composed of two steps that are constantly repeated until achiving required depth. The first step is contained of polishing and etching- where a constant depth of material removal between each section is desirable. The second step is collecting two dimensional (2D) images, after each section. After collection, images are aligned and converted to binary images with image processing programs and reconstructed as a virtual 3D structure. Different parameters (e.g. the connectivity of the phase, number of particles etc.) can be measured using 3D reconstruction.
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