Effect of NiO nanoparticles on duplex stainless steel processed via DED-LB and PBF-LB

Nahr F, Li B, Bartels D, Zhou K, Bartolo PJDS, Schmidt M (2024)

Publication Type: Journal article

Publication year: 2024

Journal

CIRP Annals - Manufacturing Technology Elsevier

DOI: 10.1016/j.cirp.2024.04.020

Abstract

Duplex stainless steels (DSS) are defined by their equal phase composition of ferrite and austenite. However, the in-situ formation of this duplex microstructure in laser-based additive manufacturing (AM) is still a challenging topic. Nanoparticle addition is a promising approach to tailor the microstructure of steels in AM. Therefore, DSS doped with 0.5 wt.-% NiO nanoparticles was fabricated by laser-based powder bed fusion (PBF-LB) and directed energy deposition (DED-LB). While having no impact on the phase composition in PBF-LB, the addition of NiO nanoparticles showed a significant increase in austenite content of 9% compared to the unmodified powder in DED-LB.

Authors with CRIS profile

Florian Nahr Lehrstuhl für Photonische Technologien Dominic Bartels Lehrstuhl für Photonische Technologien Michael Schmidt Lehrstuhl für Photonische Technologien

Involved external institutions

National University of Singapore (NUS) SG Singapore (SG)

How to cite

APA:

Nahr, F., Li, B., Bartels, D., Zhou, K., Bartolo, P.J.D.S., & Schmidt, M. (2024). Effect of NiO nanoparticles on duplex stainless steel processed via DED-LB and PBF-LB. CIRP Annals - Manufacturing Technology. https://doi.org/10.1016/j.cirp.2024.04.020

MLA:

Nahr, Florian, et al. "Effect of NiO nanoparticles on duplex stainless steel processed via DED-LB and PBF-LB." CIRP Annals - Manufacturing Technology (2024).

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