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Microstructure characterisation of advanced materials via 2D and 3D X-ray refraction techniques

Müller, Bernd R. and Kupsch, Andreas and Laquai, René and Nellesen, Jens and Tillmann, Wolfgang and Kasperovich, Galina and Bruno, Giovanni (2018) Microstructure characterisation of advanced materials via 2D and 3D X-ray refraction techniques. In: Materials Science Forum, 941, pp. 2401-2406. THERMEC 2018. Zürich: Trans Tech Publications. THERMEC 2018, 09.-13. Juli 2018, Paris, France. DOI: 10.4028/www.scientific.net/MSF.941.2401 ISBN 978-303571208-7 ISSN 0255-5476

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3D imaging techniques have an enormous potential to understand the microstructure, its evolution, and its link to mechanical, thermal, and transport properties. In this conference paper we report the use of a powerful, yet not so wide-spread, set of X-ray techniques based on refraction effects. X-ray refraction allows determining internal specific surface (surface per unit volume) in a non-destructive fashion, position and orientation sensitive, and with a nanometric detectability. We demonstrate showcases of ceramics and composite materials, where microstructural parameters could be achieved in a way unrivalled even by high-resolution techniques such as electron microscopy or computed tomography. We present in situ analysis of the damage evolution in an Al/Al2O3 metal matrix composite during tensile load and the identification of void formation (different kinds of defects, particularly unsintered powder hidden in pores, and small inhomogeneitys like cracks) in Ti64 parts produced by selective laser melting using synchrotron X-ray refraction radiography and tomography.

Item URL in elib:https://elib.dlr.de/130519/
Document Type:Conference or Workshop Item (Speech)
Title:Microstructure characterisation of advanced materials via 2D and 3D X-ray refraction techniques
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Müller, Bernd R.bernd.mueller (at) bam.deUNSPECIFIED
Kupsch, AndreasAndreas.Kupsch (at) bam.deUNSPECIFIED
Laquai, Renérene.laquai (at) bam.deUNSPECIFIED
Nellesen, Jensjens.nellesen (at) rif-ev.deUNSPECIFIED
Tillmann, WolfgangWolfgang.Tillmann (at) tu-dortmund.deUNSPECIFIED
Kasperovich, GalinaGalina.Kasperovich (at) dlr.deUNSPECIFIED
Bruno, Giovannigiovanni.bruno (at) bam.deUNSPECIFIED
Date:July 2018
Journal or Publication Title:Materials Science Forum
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.4028/www.scientific.net/MSF.941.2401
Page Range:pp. 2401-2406
Publisher:THERMEC 2018. Zürich: Trans Tech Publications
Series Name:Materials science forum
Keywords:Additive manufacturing; Composites; Creep; Damage evolution; X-ray-refraction
Event Title:THERMEC 2018
Event Location:Paris, France
Event Type:international Conference
Event Dates:09.-13. Juli 2018
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Metallic Structures and Hybrid Material Systems
Deposited By: Kasperovich, Dr.-Ing. Galina
Deposited On:14 Nov 2019 17:35
Last Modified:20 Dec 2019 13:31

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