Data from "A novel synthesis pathway for oxide dispersion strengthened Fe–Cr alloys enabled by ultrasonic atomization"

Desired composition of the alloy under investigation: Fe-14Cr-0.4Ti-0.5Y (in wt.%) / Fe-15Cr-0.5-0.3Y (at.%). AA = as-atomized powder (ultrasonic atomization) HT = heat-treated powder (1100 °C/1 h) FAST = field assisted sintered (1130 °C/5 min/24 kN) Fig 1a: scanning electron micrographs, backscattered electron contrast; cross section of the "Bottom" and "top" part of a cast rod Fig 1b: scanning electron microscopy - energy dispersive X-ray spectroscopy maps of a representative region Fig 1c: scanning electron microscopy - electron backscatter diffraction pattern, plain and with indexing according to ThMn12 prototype pattern Fig 2: scanning electron micrographs, secondary electron contrast and backscattered electron contrast; topography of powder particles and cross sections (AA and HT) Fig 3: atom probe tomography datasets in the proprietary data format by Cameca (IVAS software version 3.6.14) as well as 1D concentration profiles Fig 4: scanning electron micrographs, backscattered electron contrast; cross sections of FAST material Fig 5: O and Y content as a function of processing condition by carrier gas hot extraction and inductively coupled plasma optical emission spectrometry Table 3: scanning electron micrographs, backscattered electron contrast; cross sections Fig S1: scanning electron micrographs, secondary electron contrast and backscattered electron contrast; topography of powder particles and cross sections Fig S2: X-ray diffraction patterns as intensity in 1 vs. 2theta angle in ° Fig S3: atom probe tomography datasets in the proprietary data format by Cameca (IVAS software version 3.6.14) Fig S4: scanning electron micrograph, backscattered electron contrast; cross section Fig S5: transmission electron micrograph (bright field) and selected area diffraction pattern Further details are found in the preprint linked to this dataset. -------- We gratefully acknowledge financial support from the Deutsche Forschungsgemeinschaft (DFG), project no. 462420328. LY is financially supported by China Scholarship Council (CSC) with No. 202207000023. This work was partly carried out with the support of the Karlsruhe Nano Micro Facility (KNMFi, www.knmf.kit.edu), a Helmholtz Research Infrastructure at Karlsruhe Institute of Technology (KIT, www.kit.edu). We acknowledge the chemical analysis by HCGE at the Institute for Applied Materials (IAM-AWP) by Dr. Bergfeldt, Karlsruhe Institute of Technology (KIT).待研究合金的目标成分：Fe-14Cr-0.4Ti-0.5Y（质量百分比，wt.%）/ Fe-15Cr-0.5-0.3Y（原子百分比，at.%）。 AA：超声雾化制备的原始雾化粉末 HT：经热处理的粉末（1100 ℃/1 h） FAST：场辅助烧结试样（1130 ℃/5 min/24 kN） 图1a：扫描电子显微照片（背散射电子衬度）；铸棒底部与顶部区域的横截面形貌 图1b：典型区域的扫描电子显微镜-能量色散X射线光谱（EDS）面分布图谱 图1c：扫描电子显微镜-电子背散射衍射（EBSD）花样，包含未标定花样与基于ThMn12原型结构的标定结果 图2：扫描电子显微照片（二次电子衬度与背散射电子衬度）；粉末颗粒与AA、HT试样横截面的形貌 图3：采用Cameca公司专属数据格式（IVAS软件版本3.6.14）存储的原子探针层析成像（APT）数据集，以及一维浓度分布曲线 图4：扫描电子显微照片（背散射电子衬度）；FAST烧结试样的横截面形貌 图5：通过载气热提取法与电感耦合等离子体光发射光谱（ICP-OES）测得的氧（O）、钇（Y）含量随工艺参数的变化曲线 表3：扫描电子显微照片（背散射电子衬度）；试样横截面 补充图S1：扫描电子显微照片（二次电子衬度与背散射电子衬度）；粉末颗粒与试样横截面的形貌 补充图S2：X射线衍射（XRD）图谱，以强度为纵坐标、2θ角度（单位：°）为横坐标的衍射曲线 补充图S3：采用Cameca公司专属数据格式（IVAS软件版本3.6.14）存储的原子探针层析成像（APT）数据集 补充图S4：扫描电子显微照片（背散射电子衬度）；试样横截面 补充图S5：透射电子显微照片（明场模式）与选区电子衍射（SAED）花样 本数据集关联的预印本中包含更多详细信息。 本研究感谢德国研究基金会（Deutsche Forschungsgemeinschaft, DFG）项目462420328的经费支持。LY感谢国家留学基金委员会（China Scholarship Council, CSC）的资助（资助编号：202207000023）。本研究部分工作依托卡尔斯鲁厄纳米微结构设施（Karlsruhe Nano Micro Facility, KNMFi，www.knmf.kit.edu）开展，该设施是卡尔斯鲁厄理工学院（Karlsruhe Institute of Technology, KIT，www.kit.edu）下属的亥姆霍兹研究基础设施。本研究感谢卡尔斯鲁厄理工学院应用材料研究所（Institute for Applied Materials, IAM-AWP）的Bergfeldt博士通过HCGE完成的化学分析工作。