Zhao Yinglong, Guo Ning, Long Shiteng, Huang Xiaobin, Song Bo, Hu Jianjun, Chai Linjiang, Guo Shengfeng
School of Materials and Energy, Southwest University, Chongqing 400715, China.
College of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China.
Data Brief. 2020 Sep 23;33:106333. doi: 10.1016/j.dib.2020.106333. eCollection 2020 Dec.
This data article presents the torsion parameters and the microstructural data of the (CrCoNi)97Al1.5Ti1.5 medium-entropy alloy (MEA). The data presented in this article are related to the research article entitled "Microstructure and mechanical properties of (CrCoNi)AlTi medium entropy alloy twisted by free-end-torsion at room and cryogenic temperatures", see Ref. [1]. This article can be used for data analysis and interpretation and their comparison with other data sets in the research articles. The microstructure and the element distributions of the as-swaged rods were obtained using a scanning electron microscope (SEM) equipped with electron channelling contrast imaging (ECCI), electron diffraction spectroscopy (EDS) and electron backscattered diffraction (EBSD) detectors. The phases of the MEA before and after torsion are determined by the X-ray diffractometer (XRD) techniques. Optical micrograph, inverse pole figure (IPF) map, grain boundary map and misorientation angle distribution and pole figure of the as-swaged sample were presented. I In order to provide data reference for future torsion experiments, this article draws schematic diagrams of the hot-swaged rod, dimensions of the torsion/tensile specimens, liquid nitrogen (@LN) environment torsion device and schematic representation for characterization locations of microstructure. Lastly, Kernel Average Misorientation (KAM) maps and misorientation angle distribution of various samples or different strained layers were used for comparative analysis.
本文献数据展示了（CrCoNi）97Al1.5Ti1.5中熵合金（MEA）的扭转参数和微观结构数据。本文所呈现的数据与题为《（CrCoNi）AlTi中熵合金在室温和低温下自由端扭转的微观结构与力学性能》的研究论文相关，见参考文献[1]。本文可用于数据分析与解读，以及与研究论文中的其他数据集进行比较。采用配备电子通道衬度成像（ECCI）、电子衍射能谱（EDS）和电子背散射衍射（EBSD）探测器的扫描电子显微镜（SEM），获取了锻造态棒材的微观结构和元素分布。通过X射线衍射仪（XRD）技术确定了MEA扭转前后的相。给出了锻造态样品的光学显微照片、反极图（IPF）图、晶界图、取向差角分布和极图。为了为未来的扭转实验提供数据参考，本文绘制了热锻棒材的示意图、扭转/拉伸试样的尺寸、液氮（@LN）环境扭转装置以及微观结构表征位置的示意图。最后，使用各种样品或不同应变层的核平均取向差（KAM）图和取向差角分布进行对比分析。
