A novel approach for modifying aluminum powder EN AW-7075 with nanoparticles for additive manufacturing
Description
1. General scope This dataset forms the foundational experimental dataset investigating microstructural characteristics of TiC‑reinforced AA7075 aluminium matrix composites. The current release includes core characterization data supporting the first publication. Subsequent phases—containing extended analyses and additional conditions—are in progress and will be released in later companion datasets. The data establish a comprehensive baseline enabling future studies to build from this reference. 2. Dataset components Chemical composition – OES: Quantitative chemical analysis of tested alloys measured by Optical Emission Spectroscopy (OES). Lists elemental concentrations (wt %) of AA7075 and TiC‑modified specimens, including mean values and standard deviations. Relative density – LOM: Reports results of hot‑crack density (HC/cm²) and relative density (%) for modified TiC contents. Grain characteristics – SEM/EBSD: Grain diameter (µm) and area (µm²) obtained through SEM and EBSD analysis, evidencing grain refinement for surface and volume modification. Particle size distribution – PSD: Particle size distributions of powder modifications. Microscopy image data – Figures 2, 3, 5, 6 and 7: Contains the original unprocessed microscopy images linked to the publication. Figure 2: SEM images showing powder morphology of base 7075, TiC nanoparticles, and TiC‑modified powders Figure 3: SEM/EDS element distribution mappings providing qualitative information. Figure 5: Schematic and photographic view of the feedstock and PBF‑LB/M setup. Figure 6: Light‑optical micrographs (LOM) of defect morphology in printed parts. Figure 7: SEM/EBSD grain‑structure maps visualizing grain arrangement and orientation. All images are provided as full‑frame TIFFs to ensure data authenticity and reproducibility. 3. Project context The uploaded data define baseline results essential for later studies. Complementary datasets (e.g., calorimetry or mechanical tests) remain unpublished and will appear in future manuscripts. The shared data ensure reproducibility and transparency while maintaining the sequential release plan for further findings. 4. Data structure and repository information Data types: Processed tables (CSV) and microscopy images (TIFF) Measurement repetitions: Multiple replicates per condition Analytical methods: OES, PSD, SEM/EDS/EBSD imaging, LOM‑based density Future extensions: Additional mechanical, thermal, and microstructural data 5. Equipment and Institutional Acknowledgment All analyses were performed using facilities of Paderborn University, specifically the Chair of Materials Science (Prof. Mirko Schaper) and the Direct Manufacturing Research Center (DMRC), whose technical infrastructure supported microscopy, diffraction, and particle analysis.
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Institutions
- Paderborn UniversityNorth Rhine-Westphalia, Paderborn
- University of RostockMecklenburg-Vorpommern, Rostock