Microstructure Characterisation of Advanced Materials via 2D and 3D X-Ray Refraction Techniques
| Autor: | Galina Kapserovich, Jens Nellesen, Andreas Kupsch, Giovanni Bruno, Bernd R. Müller, Wolfgang Tillmann, René Laquai |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Additive manufacturing 02 engineering and technology Damage evolution 01 natural sciences law.invention law 0103 physical sciences Microscopy X-ray-refraction General Materials Science Ceramic Selective laser melting Composite material Porosity Composites 010302 applied physics Mechanical Engineering Metal matrix composite Creep 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Synchrotron Mechanics of Materials visual_art visual_art.visual_art_medium Tomography 0210 nano-technology |
| Zdroj: | Materials Science Forum. 941:2401-2406 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.941.2401 |
| Popis: | 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 inhomogeneity’s like cracks) in Ti64 parts produced by selective laser melting using synchrotron X-ray refraction radiography and tomography. |
| Databáze: | OpenAIRE |
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