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Real-time monitoring of additive manufacturing alloys

Barriobero Vila, Pere and Bugelnig, Katrin and Vallejos, Juan Manuel and Gussone, Joachim and Silva-Reyes, Kenneth and Villanova, Julie and Stark, Andreas and Schell, Norbert and Haubrich, Jan and Requena, Guillermo (2021) Real-time monitoring of additive manufacturing alloys. EUROPEAN CONGRESS AND EXHIBITION ON ADVANCED MATERIALS AND PROCESSES - EUROMAT 2021, 13-17 September 2021, Graz, Austria.

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Abstract

Metal-based additive manufacturing (AM) represents a paradigm change which will revolutionize the manufacturing across multiple industries such as the aerospace, biomedical and automotive sectors. However, today only a few alloys are compatible with AM. Most of those being used were developed for other manufacturing processes such as casting and forging processes where the mechanical properties can be controlled using thermal and thermo-mechanical processing, but not by the rapid solidification conditions of AM (steep heating and cooling rates between ˜ 103-108 ℃/s). In this context, the control of phase transformations and deformation modes in AM alloys plays a key role to obtain microstructures leading to suitable properties directly in the as-built state. This work uses real-time characterization at synchrotron facilities to reveal the influence of phase transformations on microstructure formation and reveal the activation of deformation mechanisms improving the strength-ductility trade-off. Titanium alloys fabricated by the powder-bed AM technique laser powder bed fusion (LPBF) are investigated using in situ synchrotron tomography and in situ high energy synchrotron X-ray diffraction. They are developed to tackle the drawbacks occurring in titanium alloys fabricated by AM, namely the formation of microstructures with anisotropy and poor ductility

Item URL in elib:https://elib.dlr.de/145905/
Document Type:Conference or Workshop Item (Speech)
Title:Real-time monitoring of additive manufacturing alloys
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Barriobero Vila, PerePere.BarrioberoVila (at) dlr.dehttps://orcid.org/0000-0002-4412-3729
Bugelnig, KatrinKatrin.Bugelnig (at) dlr.deUNSPECIFIED
Vallejos, Juan ManuelNortheast National UniversityUNSPECIFIED
Gussone, JoachimJoachim.Gussone (at) dlr.deUNSPECIFIED
Silva-Reyes, KennethUniversity of Puerto Rico at MayagüezUNSPECIFIED
Villanova, JulieEuropean Synchrotron Radiation Facility (ESRF)UNSPECIFIED
Stark, AndreasHelmholz Zentrum HereonUNSPECIFIED
Schell, NorbertHelmholz Zentrum HereonUNSPECIFIED
Haubrich, JanJan.Haubrich (at) dlr.dehttps://orcid.org/0000-0002-5748-2755
Requena, GuillermoGuillermo.Requena (at) dlr.deUNSPECIFIED
Date:14 September 2021
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Metal-based additive manufacturing, phase transformations, deformation mechanisms, in situ synchrotron-based characterization
Event Title:EUROPEAN CONGRESS AND EXHIBITION ON ADVANCED MATERIALS AND PROCESSES - EUROMAT 2021
Event Location:Graz, Austria
Event Type:international Conference
Event Dates:13-17 September 2021
Organizer:The Austrian Society for Metallurgy and Materials
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Clean Propulsion
DLR - Research area:Aeronautics
DLR - Program:L CP - Clean Propulsion
DLR - Research theme (Project):L - Advanced Materials and New Manufacturing Technologies
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Metallic Structures and Hybrid Material Systems
Deposited By: Barriobero Vila, Pere
Deposited On:24 Nov 2021 10:49
Last Modified:28 Apr 2022 09:32

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