| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Burnett, Tl
University of Manchester
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2024Exploration of fs-laser ablation parameter space for 2D/3D imaging of soft and hard materials by tri-beam microscopycitations
- 2024Damage evolution in multilayer braided composite tubes under torsion studied by in-situ X-ray Computed Tomography (CT)
- 2024The role of cavitation in the toughening of elastomer nanocomposites reinforced with graphene nanoplateletscitations
- 2023Computational study of the geometrical influence of grain topography on short crack propagation in AA7XXX series alloyscitations
- 2023In situ observation of environmentally assisted crack initiation and short crack growth behaviour of new-generation 7xxx series alloys in humid aircitations
- 2022Large-scale serial sectioning of environmentally assisted cracks in 7xxx Al alloys using femtosecond Laser-PFIBcitations
- 2022Embedded 3D printing of Multi-material composites
- 2022Tailoring the microstructure of lamellar Ti3C2Tx MXene aerogel by compressive strainingcitations
- 2021X-ray Tomographic Observation of Environmental Assisted Cracking in Heat-treated Lean Duplex Stainless Steelcitations
- 2021Multiscale analysis of grain boundary microstructure in high strength 7xxx Al alloyscitations
- 2020Environmentally induced crack (EIC) initiation, propagation, and failure: A 3D in-situ time-lapse study of AA5083 H131citations
- 2020Redistribution of carbon caused by butterfly defects in bearing steelscitations
- 2020Tracking polycrystal evolution non-destructively in 3D by laboratory X-ray diffraction contrast tomographycitations
- 2020X-Ray Tomographic Characterisation of Pitting Corrosion in Lean Duplex Stainless Steelcitations
- 2019On the application of Xe+ plasma FIB for micro-fabrication of small-scale tensile specimenscitations
- 2019Initiation and short crack growth behaviour of environmentally induced cracks in AA5083 H131 investigated across time and length scalescitations
- 2019Completing the picture through correlative characterizationcitations
- 2018Atomic-Scale Insights into the Oxidation of Aluminumcitations
- 2018Multi-Modal Plasma Focused Ion Beam Serial Section Tomography of an Organic Paint Coatingcitations
- 2018Ductile Fracture Assessment of 304L Stainless Steel Using 3D X-ray Computed Tomographycitations
- 2018Realizing the theoretical stiffness of graphene in composites through confinement between carbon fiberscitations
- 2017Degradation of metallic materials studied by correlative tomographycitations
- 2017Time-lapse lab-based X-ray nano-CT study of corrosion damagecitations
- 2017Multiscale correlative tomography: an investigation of creep cavitation in 316 stainless steelcitations
- 2016Xe+ Plasma FIB: 3D Microstructures from Nanometers to Hundreds of Micrometerscitations
- 2015Large volume serial section tomography by Xe Plasma FIB dual beam microscopycitations
- 2014Correlative tomographycitations
- 2013Simultaneous measurement of X-ray powder diffraction and ferroelectric polarisation data as a function of applied electric field at a range of frequenciescitations
Places of action
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article
Large-scale serial sectioning of environmentally assisted cracks in 7xxx Al alloys using femtosecond Laser-PFIB
Abstract
In order to better understand the mechanisms of environmentally-assisted cracking (EAC) of 7xxx aluminium aerospace alloys, large scale serial sectioning using the newly developed femtosecond laser plasma focused ion-beam (laser PFIB) has been performed on both AA7050 and AA7085 alloys containing environmentally-assisted cracks introduced during accelerated laboratory testing. The samples were firstly scanned using X-ray computed tomography in order to reveal the long-range crack morphology and allow for targeted lift out of the crack tip regions for serial sectioning. This paper describes the optimisation of the methodology for both the liftout procedure and subsequent serial sectioning using laser-PFIB. Electron backscatter diffraction (EBSD) mapping at each slice allowed for 3D reconstruction of statistically valid volumes of material, up to 0.5 mm3 with a fine voxel size (1 µm). High resolution secondary electron imaging at each slice allowed for 3D reconstruction of the crack volume, and the datasets were combined in order to investigate the interaction of the crack with the microstructure. Optimisation of both the liftout geometry and the slicing procedure resulted in significant reduction in laser-induced curtaining artefacts and higher quality data acquisition. For these alloys, laser slicing alone was sufficient to provide a deformation free surface allowing for EBSD indexing rates up to ~95 % acquired at high speeds of ~2000 Hz leading to reasonable acquisition times of ~4-5 days for each dataset. The datasets have shown that the grains in these alloys are much larger and more complex than previously realised, and the interaction of these cracks with the microstructure have shown that complex-shaped recrystallised grains can lead to significant crack deflection in these alloys and so may help to explain the observed differences in EAC behaviour.