The informations of hree dimensional (3D) grain in real materials were rarely obtained directly, especially when the grain size, shape, topology and orientation were all required. By combining the classical serial sectioning and electron backscatter diffraction (EBSD) technique, a 3D digital visible model of a group of grains in a real pure iron specimen was constructed based on 400 parallel serial section images (about 150 grains appearing in each section image) with an average inter-section distance of (1.69±0.3) μm. The model presented enables the stereoscopic observation in a 3D space. Besides, this model can provide not only the quantitative geometric information including grain sizes, shapes and topological characteristics, but also the real orientation information of both the grains and their boundaries in 3D polycrystal space, which offers new insights into the digitalization and visualization of real material microstructures.
LUAN Jun-Hua
,
YU Gao
,
LIU Guo-Quan
. THREE--DIMENSIONAL RECONSTRUCTION OF GRAINS IN PURE IRON SPECIMEN[J]. Acta Metall Sin, 2011
, 47(1)
: 69
-73
.
DOI: 10.3724/SP.J.1037.2010.00233
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