This dataset contains micro-computed tomography images of selected additively manufactured (powder bed fusion of metals using a laser beam, PBF-LB/M) downskin surface test specimens in accordance with __DIN EN ISO/ASTM 52902:2020-05__. Individual scans of flat tabs with downskin angles of 15° were acquired per material to ensure comparability. * __Materials__: 316L (Carpenter Additive) and CuCrZr (Eckart TLS GmbH) * __Downskin Angle__: 15° * __PBF-LB Machine__: Aconity MIDI+ equipped with an integrated Aerosint SPD Recoater V1.0 * __µCT Scanner__: Bruker SkyScan 1275  Exemplary volumetric representation of the 316L 15° test specimen ### References The acquired data was used as part of the following publications, which can be referenced for further details: * Meyer, I., Oel, M., Ehlers, T., & Lachmayer, R. (2023). _Additive manufacturing of multi-material parts – Design guidelines for manufacturing of 316L/CuCrZr in laser powder bed fusion_. Heliyon, 9(8), e18301. [https://doi.org/10.1016/j.heliyon.2023.e18301](https://doi.org/10.1016/j.heliyon.2023.e18301) * Meyer, I. (2022). _Belichtungsprozess für die Multimaterialfertigung von Testkörpern im Laser powder bed fusion_. [https://doi.org/10.5446/58540](https://doi.org/10.5446/58540) ### Acknowledgments * This research has been funded by the Ministry for Science and Culture of Lower Saxony (MWK) – School for Additive Manufacturing SAM. * The project _“Major Research Instrumentation for integration of efficient effects in multi-material structural components”_ was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project number 445707542. * The project _“Computer tomograph for optomechatronic systems”_ was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project number 432176896.