Random generator of virtual 3D microstructures
Keywords:Microstructure, Stereology, Tessellations, Solid phase transformations, Recrystallisation
A computer model for the generation of 3D grain microstructures is described. The solid (usually a cube) is discretised in voxels. Grain seeds are distributed at random in some voxels. These seeds can be placed beforehand or simultaneously with the grain growth process. There are two ways for assigning a voxel to a particular grain, which are described in detail. After completion of a 3D tessellation, the model identifies the voxels at the grain boundaries. This feature allows for an easy computation of stereological parameters or as a basis for simulating recrystallisation or phase transformations nucleated at grain boundaries.
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