WAXS experiments at the DELTA synchrotron source for microstructural analysis of additively manufactured materials

As part of Research Group 5620, WAXS (wide-angle X-ray scattering) experiments were carried out at the DELTA synchrotron radiation source at TU Dortmund University within Subproject 6 of the Chair of New Manufacturing Technologies and Materials. The synchrotron radiation generated at the storage ring was coupled into the experimental setup via suitable beamlines and used for materials science analyses. Ex situ and in situ measurements at temperatures of up to 650 °C were conducted to investigate temperature-induced phase formation and transformation processes. Further information on the facility can be found on the DELTA website: https://delta.tu-dortmund.de/forschung/beschleuniger/.
 
The aim of the investigations was to experimentally analyze the microstructure as a function of local build height in DED-LB/M-manufactured samples and associated thermal effects, in order to draw conclusions about microstructure evolution in subsequent topology-optimized, complex DED-LB/M components. In addition, the data obtained will be used to validate thermodynamic simulations of microstructure formation and evolution. The research group would like to thank Dr. Christian Sternemann from the Center for Synchrotron Radiation for his scientific support and supervision during the experiments.