We describe 3D characterization of an additively manufactured Inconel 625 nickel-base superalloy specimen conducted during a uniaxial tension test using a suite of nondestructive x-ray techniques. High-energy diffraction microscopy in both near- and far-field modalities are employed in situ to track evolution of the material orientation and stress–strain fields at six points during the mechanical test, and these data streams are registered with micro-computed tomography reconstructions which probe the material density. This data volume was matched to a multi-modal serial sectioning characterization of the specimen taken after loading, described in this article’s companion. Twenty-eight grains which were monitored throughout the experiment were selected to form the basis for AFRL AM Modeling Series Challenge 4, Microscale Structure-to-Properties.

我们描述了使用一套无损 X 射线技术在单轴拉伸试验期间进行的增材制造的 Inconel 625 镍基高温合金试样的 3D 表征。近场和远场模式的高能衍射显微镜被用于原位跟踪机械测试过程中六个点的材料取向和应力应变场的演变，这些数据流与微计算机断层扫描重建登记探测材料密度。该数据量与加载后采集的样本的多模式连续切片特征相匹配，如本文的同伴所述。选择在整个实验过程中进行监测的 28 个晶粒形成 AFRL AM 建模系列挑战 4，微尺度结构到特性的基础。