Revealing dynamic processes in laser powder bed fusion with in situ X-ray diffraction at PETRA III

dc.contributor.authorKrohmer, Erwin
dc.contributor.authorSchmeiser, Felix
dc.contributor.authorWahlmann, Benjamin
dc.contributor.authorRosigkeit, Jan
dc.contributor.authorGraf, Gloria
dc.contributor.authorSpoerk-Erdely, Petra
dc.contributor.authorClemens, Helmut
dc.contributor.authorStaron, Peter
dc.contributor.authorKörner, Carolin
dc.contributor.authorReimers, Walter
dc.contributor.authorUhlmann, Eckart
dc.date.accessioned2022-08-10T11:36:08Z
dc.date.available2022-08-10T11:36:08Z
dc.date.issued2022-06-10
dc.descriptionThis article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in: Krohmer, E., Schmeiser, F., Wahlmann, B., Rosigkeit, J., Graf, G., Spoerk-Erdely, P., Clemens, H., Staron, P., Körner, C., Reimers, W., & Uhlmann, E. (2022). Revealing dynamic processes in laser powder bed fusion with in situ X-ray diffraction at PETRA III. In Review of Scientific Instruments (Vol. 93, Issue 6, p. 065104). AIP Publishing. https://doi.org/10.1063/5.0077105 and may be found at https://doi.org/10.1063/5.0077105.en
dc.description.abstractThe high flux combined with the high energy of the monochromatic synchrotron radiation available at modern synchrotron facilities offers vast possibilities for fundamental research on metal processing technologies. Especially in the case of laser powder bed fusion (LPBF), an additive manufacturing technology for the manufacturing of complex-shaped metallic parts, in situ methods are necessary to understand the highly dynamic thermal, mechanical, and metallurgical processes involved in the creation of the parts. At PETRA III, Deutsches Elektronen-Synchrotron, a customized LPBF system featuring all essential functions of an industrial LPBF system, is used for in situ x-ray diffraction research. Three use cases with different experimental setups and research questions are presented to demonstrate research opportunities. First, the influence of substrate pre-heating and a complex scan pattern on the strain and internal stress progression during the manufacturing of Inconel 625 parts is investigated. Second, a study on the nickel-base superalloy CMSX-4 reveals the formation and dissolution of γ′ precipitates depending on the scan pattern in different part locations. Third, phase transitions during melting and solidification of an intermetallic γ-TiAl based alloy are examined, and the advantages of using thin platelet-shaped specimens to resolve the phase components are discussed. The presented cases give an overview of in situ x-ray diffraction experiments at PETRA III for research on the LPBF technology and provide information on specific experimental procedures.en
dc.description.sponsorshipDFG, 317078200, In Situ Diffraktion beim Selektiven Laserstrahlschmelzenen
dc.identifier.eissn1089-7623
dc.identifier.issn0034-6748
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/17333
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-16114
dc.language.isoenen
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitende
dc.subject.othersynchrotron radiationen
dc.subject.otheralloysen
dc.subject.otherthermal effectsen
dc.subject.other3D printingen
dc.subject.othermetallurgyen
dc.subject.otherX-ray diffractionen
dc.subject.otherphase transitionsen
dc.subject.otherlasersen
dc.titleRevealing dynamic processes in laser powder bed fusion with in situ X-ray diffraction at PETRA IIIen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber065104en
dcterms.bibliographicCitation.doi10.1063/5.0077105en
dcterms.bibliographicCitation.issue6en
dcterms.bibliographicCitation.journaltitleReview of Scientific Instrumentsen
dcterms.bibliographicCitation.originalpublishernameAIPen
dcterms.bibliographicCitation.originalpublisherplaceMelville, NYen
dcterms.bibliographicCitation.volume93en
tub.accessrights.dnbembargoed*
tub.affiliationFak. 3 Prozesswissenschaften>Inst. Werkstoffwissenschaften und -technologien>FG Metallische Werkstoffede
tub.affiliation.facultyFak. 3 Prozesswissenschaftende
tub.affiliation.groupFG Metallische Werkstoffede
tub.affiliation.instituteInst. Werkstoffwissenschaften und -technologiende
tub.publisher.universityorinstitutionTechnische Universität Berlinen
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