Neighborhood topological effect on grain topology-size relationship in three-dimensional polycrystalline microstructures
نویسندگان
چکیده
منابع مشابه
Tail Departure of Log-Normal Grain Size Distributions in Synthetic Three-Dimensional Microstructures
Polycrystalline materials are generally thought to have grain size distributions that correspond to log-normal. Statistical volume elements can use such geometric shape distributions to simulate single-phase polycrystals. When the log-normal distribution is used for grain size, however, it can give rise to nonphysical large grains that cannot be practically accommodated in finite simulation vol...
متن کاملParametric representation of 3D grain ensembles in polycrystalline microstructures
As a straightforward generalization of the well-known Voronoi construction, Laguerre tessellations have long found application in the modelling, analysis and simulation of polycrystalline microstructures. The application of Laguerre tessellations to real (as opposed to computed) microstructures—such as those obtained by modern 3D characterization techniques like x-ray microtomography or focused...
متن کاملGrain size control in polycrystalline colloidal
Recent experiments on the static and dynamic properties of polycrystalline colloidal solids show a pronounced influence of morphological details. Here we investigate several possibilities to vary systematically one key morphological parameter, namely the average crystallite radius rc of polycrystalline solids. We report measurements of rc as observed by microscopy in well-characterized Yukawa m...
متن کاملThree-dimensional cellular automata modelling of cleavage propagation across crystal boundaries in polycrystalline microstructures
A three-dimensional cellular automata (CA) with rectilinear layout is used in this work to create and cleave polycrystalline microstructures. Each crystal is defined by a unique randomly generated orientation tensor. Separate states for grains, grain boundaries, crack flanks and crack fronts are created. Algorithms for progressive cleavage propagation through crystals and across grain boundarie...
متن کاملDetermination of Three-Dimensional Grain Boundary Connectivity from Two-Dimensional Microstructures
The connectivity of so-called “special” and “general” grain boundaries at a quadruple node is known to be nonrandom as a result of crystallographic constraints. Although a quadruple node is a three-dimensional feature, there exist two-dimensional features which are topologically identical. Therefore, the distribution of these twodimensional features may be used to determine the three-dimensiona...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chinese Science Bulletin
سال: 2013
ISSN: 1001-6538,1861-9541
DOI: 10.1007/s11434-013-5900-5