Microstructure of selective laser melted 316L under non-equilibrium solidification conditions

Abstract: In this study, the microstructural properties of selective laser melted 316L stainless steel were investigated using optical, scanning and transmission electron microscopy as well as X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy. The results show a very fine microstructure with visible melt pool boundaries and austenite as the predominant phase. Extremely fine sub-grain structures can be found within the grains, consisting of colonies of round or elongated cellular structures depending on orientations. Due to the prevailing cooling and solidification conditions, micro-segregations occur, leading to enrichment of the sub-grain boundaries with alloying elements such as silicon, chromium, manganese and molybdenum. The presence of ferrite could be detected in this area using TEM analysis

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch
Notes
Journal of experimental and theoretical analyses. - 1, 2 (2023) , 64-73, ISSN: 2813-4648

Event
Veröffentlichung
(where)
Freiburg
(who)
Universität
(when)
2023
Creator
Özel, Emre
Pede, Dennis
Müller, Claas
Thomann, Yi
Thomann, Ralf
Mozaffari-Jovein, Hadi
Contributor

DOI
10.3390/jeta1020005
URN
urn:nbn:de:bsz:25-freidok-2415344
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:27 AM CEST

Data provider

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Time of origin

  • 2023

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