Microstructure optimization by combinatorial approach applied to Duplex Medium Manganese steels

The aim of the study was to introduce a combinatorial approach to optimize the microstructure of duplex medium-manganese (Mn) steels using in situ high-energy X-ray diffraction (HEXRD) during intercritical annealing. A controlled temperature gradient (680–720 °C) was applied across a single sample, allowing real-time monitoring of phase transformations over a broad thermal range in one single experiment. The present dataset was obtained during in situ High Energy X-Ray Diffraction experiments performed at the European Synchrotron Radiation Facility (ESRF) at ID31 beamline during two sessions of experiments: February 2024 and July 2024.