Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Influence of process parameter variation on the microstructure of thin walls made of Inconel 718 deposited via laser-based directed energy deposition with blown powder
Fraunhofer IWS, Winterbergstraße 28, 01277, Dresden, Germany; Institute of Materials Science, Technische Universität Dresden, Helmholtzstr. 7, 01069, Dresden, Germany.
Fraunhofer IWS, Winterbergstraße 28, 01277, Dresden, Germany.
Fraunhofer IWS, Winterbergstraße 28, 01277, Dresden, Germany.
Fraunhofer IWS, Winterbergstraße 28, 01277, Dresden, Germany.
Vise andre og tillknytning
2023 (engelsk)Inngår i: Journal of Materials Science, ISSN 0022-2461, E-ISSN 1573-4803, Vol. 58, nr 27, s. 11310-11326Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In laser-based directed energy deposition (L-DED) of Inconel 718 the microstructure of the fabricated components strongly depends on the applied process parameters and the resulting solidification conditions. Numerous studies have shown that the process parameters deposition speed and laser power have a major influences on microstructural properties, such as dendrite morphology and segregation behavior. This study investigates how changes in these process parameters affect the microstructure and hardness when the line mass, and thus the resulting layer height, are kept constant. This enables the microstructural comparison of geometrically similar specimens that were manufactured with the same number of layers but severely different process parameters. This approach yields the benefit of almost identical geometrical boundary conditions, such as the layer-specific build-height and heat conducting cross section, for all specimens. For microstructural analysis scanning electron microscopy and energy dispersive X-ray spectroscopy were applied and the results evaluated in a quantitative manner. The microstructural features primary dendritic arm spacing, fraction and morphology of precipitated Laves phase as well as the spatially resolved chemical composition were measured along the build-up direction. The occurring cooling rates were calculated based on the primary dendritic arm spacing using semi-empirical models. Three different models used by others researchers were applied and evaluated with respect to their applicability for L-DED. Finally, microhardness measurements were performed for a baseline evaluation of the influence on the materials’ mechanical properties.

sted, utgiver, år, opplag, sider
Springer Nature, 2023. Vol. 58, nr 27, s. 11310-11326
HSV kategori
Forskningsprogram
Produktionsutveckling
Identifikatorer
URN: urn:nbn:se:ltu:diva-99419DOI: 10.1007/s10853-023-08706-xISI: 001024862000003Scopus ID: 2-s2.0-85164202693OAI: oai:DiVA.org:ltu-99419DiVA, id: diva2:1786904
Merknad

Validerad;2023;Nivå 2;2023-08-10 (hanlid)

Tilgjengelig fra: 2023-08-10 Laget: 2023-08-10 Sist oppdatert: 2024-03-07bibliografisk kontrollert

Open Access i DiVA

fulltext(4965 kB)148 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 4965 kBChecksum SHA-512
f55d21f2b4339c9af006750fb16b05d8bec9f66e89d8df804462cef4b817c9a9512eb7109ead7e57e4369388a7a2686a978a989a308009e95e76da0626c5d48e
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekstScopus

Person

Brueckner, F.

Søk i DiVA

Av forfatter/redaktør
Brueckner, F.
Av organisasjonen
I samme tidsskrift
Journal of Materials Science

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 160 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 152 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf