Abstract
In this work, electron backscatter diffraction (EBSD) was applied to investigate the microstructure distribution within the selective-laser-melted 17-4 PH martensitic steel. The volume fraction of the δ-ferrite was found to decrease in the building direction. This effect was attributed to the decrease in the cooling rate, which promoted the δ-ferrite → austenite → α-martensite transformation sequence.
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The authors declare that they have no conflict of interest. This work was performed using the equipment of the Joint Research Center “Technology and Materials” at Belgorod National Research University (financial support from the Ministry of science and higher education of the Russian Federation under the Agreement No. 075-15-2021-690, the unique project identifier RF 2296.61321X0030). The authors are also grateful to Alexander Kalinenko for help with EBSD measurements.
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Vysotskiy, I., Malopheyev, S., Zuiko, I. et al. Microstructure Distribution in 17-4 PH Martensitic Steel Produced by Selective Laser Melting. Metall Mater Trans A 53, 4143–4147 (2022). https://doi.org/10.1007/s11661-022-06829-5
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DOI: https://doi.org/10.1007/s11661-022-06829-5