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  Effect of nanoparticle additivation on the microstructure and microhardness of oxide dispersion strengthened steels produced by laser powder bed fusion and directed energy deposition

Doñate-Buendía, C., Streubel, R., Kürnsteiner, P., Wilms, M. B., Stern, F., Tenkamp, J., et al. (2020). Effect of nanoparticle additivation on the microstructure and microhardness of oxide dispersion strengthened steels produced by laser powder bed fusion and directed energy deposition. Procedia CIRP, 94, 41-45.

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2020
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The Authors. Published by Elsevier B. V.

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 Creators:
Doñate-Buendía, Carlos1, Author
Streubel, René1, Author
Kürnsteiner, Philipp2, Author           
Wilms, Markus Benjamin3, Author           
Stern, Felix4, Author
Tenkamp, Jochen4, Author
Bruder, Enrico5, Author           
Barcikowski, Stephan1, Author
Gault, Baptiste6, Author           
Durst, Karsten5, Author           
Schleifenbaum, Johannes H.7, 8, Author           
Walther, Frank4, Author
Gökce, Bilal1, Author
Affiliations:
1Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany, ou_persistent22              
2Alloys for Additive Manufacturing, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_2117289              
3Fraunhofer Institute for Laser Technology ILT, Aachen, Germany, ou_persistent22              
4Department of Materials Test Engineering, TU Dortmund University, 44227 Dortmund, Germany, ou_persistent22              
5Department of Materials Science, TU Darmstadt, Alarich-Weiß-Straße 2, Darmstadt, Germany, ou_persistent22              
6Atom Probe Tomography, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863384              
7Fraunhofer Institute for Laser Technology (ILT), 52074 Aachen, Germany, ou_persistent22              
8Digital Additive Production (DAP), RWTH Aachen University, 52074 Aachen, Germany, ou_persistent22              

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Free keywords: 3D printers; Breeding blankets; Chromium alloys; Deposition; Dispersions; Iron alloys; Microhardness; Microstructure; Nanoparticles; Photonic bandgap fibers; Synthesis (chemical), Directed energy; Iron chromium alloy; Laser fragmentation; Laser powders; Micro-structural; Oxide dispersion strengthened steel; Powder composites, Pulsed lasers
 Abstract: In this contribution, the effect of nanoparticle additivation on the microstructure and microhardness of oxide dispersion strengthened steels (ODS) manufactured by laser powder bed fusion (L-PBF) and directed energy deposition (DED) additive manufacturing (AM) is studied. The powder composites are made of micrometer-sized iron-chromium-alloy based powder which are homogenously decorated with Y2O3 nanoparticles synthesized by pulsed laser fragmentation in water. Consolidated by L-PBF and DED, an enhanced microhardness of the AM-built ODS sample is found. This increase is related to the significant microstructural differences found between the differently processed samples. © 2020 The Authors. Published by Elsevier B.V.

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Language(s): eng - English
 Dates: 2020
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1016/j.procir.2020.09.009
 Degree: -

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Title: 11th CIRP Conference on Photonic Technologies [LANE 2020]
Place of Event: virtuel edition
Start-/End Date: 2020-09-07 - 2020-09-10

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Title: Procedia CIRP
Source Genre: Journal
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Pages: - Volume / Issue: 94 Sequence Number: - Start / End Page: 41 - 45 Identifier: -