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Forschungsprojekte
Projektvollmacht
Lehre
Forschung
Organisation
Tompgraphy/Diffraction of heterogeneous metals
01.04.2007 - 30.09.2011
Eigenprojekt
The three-dimensional description of heterogeneous materials is elaborated by means of X-ray (XCT), synchrotron (SCT) computed tomography, as well as sectioning by Focussed Ion Beam and imaging by scanning electron microscopy (FIB-SEM). The objects are fiber reinforced polymers, particle, short fiber or continuous fiber reinforced light metals, cellular metals, Al-alloys, grey cast iron and steel castings. The criteria for spatial and elemental resolution will be identified. The architecture of the reinforcing components in composites as well as porosity are investigated. The pores in cellular metals as well as the distribution of the Ti-blowing agent are determined. The Fe-rich inclusions, the distribution of the eutectic Si and of solidified Mg2Si (chinese script) are detected. The graphite particles and their distribution is investigated in grey cast iron, where the connectivity of the shrinkage porosity is revealed as well. Gas pores, oxide inclusions, segregations and primary/secondary precipitates and deformation pores are identified. The resolution limits will be worked out for the different material combinations and 3D-investigation methods at the available length scales (submicron to millimetres). Publications on 3D metallography are envisaged. The submission of a research proposal to FWF is planned.
Personen
Projektleiter_in
Hans-Peter Degischer
(E308)
Projektmitarbeiter_innen
Johannes Jonke
(E308)
Andreas Kottar
(E308)
Fernando Lasagni
(E308)
Guillermo Carlos Requena
(E308)
Michael Schöbel
(E308)
Domonkos Tolnai
(E308)
Institut
E308 - Institute of Materials Science and Technology
Forschungsschwerpunkte
Materials Characterization: 100%
Schlagwörter
Deutsch
Englisch
Synchrotronbeugung & CT
synchrotron diffraction & CT
Heterogene Werkstoffe
heterogeneous materials
Neutronenbeugung & CT
neutron diffraction & CT
3-dim. Gefügebeschreibung
3-dim. microstructure
Eigenspannungen
residual stresses
Röntgenbeugung & CT
X-ray diffraction & CT
Externe Partner_innen
Hahn-Meitner-Institut Berlin
Max-Planck-Institut für Eisenfoschung GmbH
GKSS Geesthacht GmbH
Universität des Saarlandes
ESRF, European Sychrotron Radiation Facility
Publikationen
Publikationsliste