Journal
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
Volume 53, Issue 12, Pages 4143-4147Publisher
SPRINGER
DOI: 10.1007/s11661-022-06829-5
Keywords
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Funding
- Ministry of science and higher education of the Russian Federation [075-15-2021-690, RF 2296.61321X0030]
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In this study, EBSD was used to investigate the microstructure distribution within the selective-laser-melted 17-4 PH martensitic steel. The volume fraction of delta-ferrite decreased in the building direction, which was attributed to a decrease in cooling rate and promoted the delta-ferrite -> austenite -> alpha-martensite transformation sequence.
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 delta-ferrite was found to decrease in the building direction. This effect was attributed to the decrease in the cooling rate, which promoted the delta-ferrite -> austenite -> alpha-martensite transformation sequence.
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