Detail publikačního výsledku

Microstructure and microhardness analyses of meso-scale heterogeneous super duplex stainless steel fabricated via LPBF from Ni-enriched 2507 powder

SNOPIŃSKI, P.; WAWRZYNEK, J.; KROL, M.; KOTOUL, M.; BRYTAN, Z.

Originální název

Microstructure and microhardness analyses of meso-scale heterogeneous super duplex stainless steel fabricated via LPBF from Ni-enriched 2507 powder

Anglický název

Microstructure and microhardness analyses of meso-scale heterogeneous super duplex stainless steel fabricated via LPBF from Ni-enriched 2507 powder

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Using a 6 wt.% Ni-enriched 2507 super duplex stainless steel (SDSS) powder feedstock, alternating 1 mm thick strata were fabricated by laser powder bed fusion (LPBF) through variation of the volumetric energy density, enabling control of the local thermal history and melt pool lifetime. The resulting mesostructure was characterized using electron backscatter diffraction (EBSD) and correlative hardness mapping. EBSD confirmed the formation of distinct alternating strata with varying austenite fractions, while hardness mapping demonstrated that these microstructural variations translate directly into a tailored mesoscale mechanical response. Overall, the results show that combining tailored feedstock chemistry with control of the local thermal history provides an effective strategy for designing hierarchical microstructures and optimizing the performance of additively manufactured SDSS.

Anglický abstrakt

Using a 6 wt.% Ni-enriched 2507 super duplex stainless steel (SDSS) powder feedstock, alternating 1 mm thick strata were fabricated by laser powder bed fusion (LPBF) through variation of the volumetric energy density, enabling control of the local thermal history and melt pool lifetime. The resulting mesostructure was characterized using electron backscatter diffraction (EBSD) and correlative hardness mapping. EBSD confirmed the formation of distinct alternating strata with varying austenite fractions, while hardness mapping demonstrated that these microstructural variations translate directly into a tailored mesoscale mechanical response. Overall, the results show that combining tailored feedstock chemistry with control of the local thermal history provides an effective strategy for designing hierarchical microstructures and optimizing the performance of additively manufactured SDSS.

Klíčová slova

Additive manufacturing;microstructural analysis;hardness mapping; local thermal histories;mesoscale phase formation

Klíčová slova v angličtině

Additive manufacturing;microstructural analysis;hardness mapping; local thermal histories;mesoscale phase formation

Autoři

SNOPIŃSKI, P.; WAWRZYNEK, J.; KROL, M.; KOTOUL, M.; BRYTAN, Z.

Vydáno

30.09.2026

Nakladatel

Iop Publishing Ltd

Místo

Bristol

Kniha

IOP Conference Series-Materials Science and Engineering

Periodikum

IOP conference series. Materials science and engineering

Svazek

1350

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

6

Strany počet

6

URL

https://iopscience-iop-org.ezproxy.lib.vutbr.cz/article/10.1088/1757-899X/1350/1/012043/pdf

BibTex

@inproceedings{BUT212751,
  author="Przemysław {Snopiński} and  {} and  {} and Michal {Kotoul} and  {}",
  title="Microstructure and microhardness analyses of meso-scale heterogeneous super duplex stainless steel fabricated via LPBF from Ni-enriched 2507 powder",
  booktitle="IOP Conference Series-Materials Science and Engineering",
  year="2026",
  journal="IOP conference series. Materials science and engineering",
  volume="1350",
  pages="1--6",
  publisher="Iop Publishing Ltd",
  address="Bristol",
  doi="10.1088/1757-899X/1350/1/012043",
  issn="1757-8981",
  url="https://iopscience-iop-org.ezproxy.lib.vutbr.cz/article/10.1088/1757-899X/1350/1/012043/pdf"
}