3D-EBSD and DCT datasets of a fully recrystallized pure Fe (BCC) and a chill-cast, modified E309L austenitic stainless steel (FCC)

This dataset accompanies the manuscript “Quantitative comparison of laboratory-based diffraction contrast tomography (DCT) and serial-section three-dimensional electron backscatter diffraction (3D-EBSD) for microstructural characterization of pure Fe and a modified E309L stainless steel” by Mehdi Mosayebi, Pardis Mohammadpour, Pierre-Antony Deschênes, Laurent Tôn-Thât, Daniel Paquet, Andre B Phillion, and Nabil Bassim, submitted to Materials Characterization (In Review). The dataset provides the experimental data and processing workflows used to quantitatively compare non-destructive laboratory-based DCT with destructive serial-section 3D-EBSD for three-dimensional microstructural characterization. The dataset includes the complete 3D-EBSD and LabDCT data for a fully recrystallized pure iron and a chill-cast, modified E309L austenitic stainless steel, together with the Dream.3D processing pipelines used for segmentation, meshing, and quantitative grain- and grain-boundary–level analyses. These data support the evaluation of grain morphology, size and shape statistics, crystallographic orientation distributions, and five-degree-of-freedom (5DOF) grain boundary character distributions presented in the associated manuscript. Users of this dataset are kindly requested to cite the associated manuscript and acknowledge the authors if the data or processing workflows are used in their own research. The files include processed three-dimensional label volumes derived from both 3D-EBSD and LabDCT, Dream.3D pipeline files documenting the full data-processing workflow, and derived grain boundary datasets used for statistical analysis. The Dream.3D pipelines capture all key steps, including data import, segmentation, cleanup, surface meshing, and grain boundary character extraction. The software versions used in generating this dataset are: Dream3D v6.x. The dataset structure is as follows: Processed 3D-EBSD and LabDCT label volumes in HDF5 format Dream3D pipeline files (.json) documenting the complete processing workflow This dataset is intended to serve as a reproducible benchmark for researchers interested in three-dimensional crystallographic characterization and in assessing the capabilities and limitations of laboratory-based DCT relative to serial-section 3D-EBSD.本数据集配套于Mehdi Mosayebi、Pardis Mohammadpour、Pierre-Antony Deschênes、Laurent Tôn-Thât、Daniel Paquet、Andre B Phillion与Nabil Bassim提交至《材料表征》（Materials Characterization，正在审稿中）的论文《基于实验室的衍射衬度层析成像（diffraction contrast tomography, DCT）与连续切片三维电子背散射衍射（serial-section three-dimensional electron backscatter diffraction, 3D-EBSD）用于纯铁及改性E309L不锈钢微观结构表征的定量对比》。本数据集提供了用于定量对比非破坏性实验室基DCT与破坏性连续切片3D-EBSD三维微观结构表征方法的实验数据与处理流程。 本数据集包含完全再结晶纯铁及激冷铸造改性E309L奥氏体不锈钢的完整3D-EBSD与LabDCT数据，以及用于分割、网格化以及晶粒与晶界层级定量分析的Dream.3D处理流程管线。这些数据支撑了相关论文中提出的晶粒形貌、尺寸与形状统计、晶体取向分布以及五自由度（five-degree-of-freedom, 5DOF）晶界特征分布的评估工作。 若使用者在自身研究中使用本数据集或其中的处理流程，敬请引用相关论文并致谢作者。 数据集文件包含由3D-EBSD与LabDCT得到的已处理三维标记体积数据、记录完整数据处理流程的Dream.3D管线文件（.json格式），以及用于统计分析的衍生晶界数据集。Dream.3D管线涵盖了所有关键步骤，包括数据导入、分割、清理、表面网格化以及晶界特征提取。 本数据集生成过程中使用的软件版本为：Dream3D v6.x。 数据集结构如下： 1. 以HDF5格式存储的已处理3D-EBSD与LabDCT标记体积数据 2. 记录完整处理流程的Dream.3D管线文件（.json格式） 本数据集旨在为关注三维晶体结构表征、以及评估实验室基DCT相较于连续切片3D-EBSD的性能与局限性的研究人员提供可复现的基准数据集。