3D reconstruction of a multiscale microstructure by anisotropic tessellation models

Abstract : In the area of tessellation models, there is an intense activity to fully understand the classical models of Voronoi, Laguerre and Johnson-Mehl. Still, these models are all simulations of isotropic growth and are therefore limited to very simple and partly convex cell shapes. The here considered microstructure of martensitic steel has a much more complex and highly non convex cell shape, requiring new tessellation models. This paper presents a new approach for anisotropic tessellation models that resolve to the well-studied cases of Laguerre and Johnson-Mehl for spherical germs. Much better reconstructions can be achieved with these models and thus more realistic microstructure simulations can be produced for materials widely used in industry like martensitic and bainitic steels.
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Submitted on : Thursday, January 29, 2015 - 3:43:48 PM
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Hellen Altendorf, Felix Latourte, Dominique Jeulin, Matthieu Faessel, L. Saintoyant. 3D reconstruction of a multiscale microstructure by anisotropic tessellation models. Image Analysis and Stereology, International Society for Stereology, 2014, 33 (2), pp.121-130. ⟨10.5566/ias.v33.p121-130⟩. ⟨hal-01111094⟩



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