THREE-DIMENSIONAL RECONSTRUCTION OF GRAINS IN PURE IRON SPECIMEN
THREE-DIMENSIONAL RECONSTRUCTION OF GRAINS IN PURE IRON SPECIMEN
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纯铁试样中晶粒的三维重建
DOI：
10.3724/sp.j.1037.2010.00233
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发表时间：
2011-01
期刊：
影响因子：
--
通讯作者：
Wang Hao
中科院分区：
文献类型：
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作者：
Luan Junhua;Liu Guoquan;Wang Hao
实际材料中三维（3D）晶粒的信息很少直接获得，特别是当晶粒尺寸、形状、拓扑和取向都需要时。结合经典的串行切片和电子背散射衍射（EBSD）技术，基于400张平行串行切片图像（每张切片图像中出现约150个晶粒）平均切片间距为（1.69±0.3）μm，构建了真实纯铁样品中一组晶粒的3D数字可视模型。所提出的模型能够在 3D 空间中进行立体观察。此外，该模型不仅可以提供晶粒尺寸、形状和拓扑特征等定量几何信息，还可以提供3D多晶空间中晶粒及其边界的真实取向信息，为真实材料微观结构的数字化和可视化提供了新的见解。
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.