Journal article
3-D growth of a short fatigue crack within a polycrystalline microstructure studied using combined diffraction and phase-contrast X-ray tomography
Universite Claude Bernard Lyon 11
Helmholtz-Zentrum Hereon2
Karlsruhe Institute of Technology3
Mines Paris - PSL4
Metal Structures in Four Dimensions, Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark5
Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark6
Risø National Laboratory for Sustainable Energy, Technical University of Denmark7
University of Manchester8
European Synchrotron Radiation Facility9
X-ray diffraction contrast tomography is a recently developed, non-destructive synchrotron imaging technique which characterizes microstructure and grain orientation in polycrystalline materials in three dimensions. By combining it with propagation-based phase-contrast tomography it is possible to get a full picture description for the analysis of local crack growth rate of short fatigue cracks in three dimensions: the three-dimensional crack morphology at different propagation stages, and the shape and orientation of the grains around the crack.
An approach has been developed on the metastable beta titanium alloy Ti 21S that allows for visualization and analysis of the growth rate and crystallographic orientation of the fracture surface.
Language: | English |
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Year: | 2011 |
Pages: | 590-601 |
ISSN: | 18732453 and 13596454 |
Types: | Journal article |
DOI: | 10.1016/j.actamat.2010.09.063 |