| 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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Todt, Juraj
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2024Peculiarity of hydrogen absorption in duplex steels: Phase-selective lattice swelling and stress evolutioncitations
- 2023Deflecting Dendrites by Introducing Compressive Stress in Li7La3Zr2O12 Using Ion Implantationcitations
- 2023Metal–Matrix Composites from High‐Pressure Torsion with Functionalized Material Behavior
- 2023Influence of Hatch Strategy on Crystallographic Texture Evolution, Mechanical Anisotropy of Laser Beam Powder Bed Fused S316L Steelcitations
- 2023Design of high-strength martensitic steels by novel mixed-metal nanoprecipitates for high toughness and suppressed hydrogen embrittlementcitations
- 2023Deflecting Dendrites by Introducing Compressive Stress in Li7La3Zr2O12 Using Ion Implantation ; ENEngelskEnglishDeflecting Dendrites by Introducing Compressive Stress in Li7La3Zr2O12 Using Ion Implantationcitations
- 2023Ti$_{40}$Zr$_{10}$Cu$_{36}$Pd$_{14}$ bulk metallic glass as oral implant materialcitations
- 2023Manufacturing size effect on the structural and mechanical properties of additively manufactured Ti-6Al-4V microbeamscitations
- 2023Ti40Zr10Cu36Pd14 bulk metallic glass as oral implant materialcitations
- 2022Graded Inconel-stainless steel multi-material structure by inter- and intralayer variation of metal alloyscitations
- 2022Graded Inconel-stainless steel multi-material structure by inter- and intralayer variation of metal alloyscitations
- 2022Combining hardness measurements of a heat-treated crankshaft bearing with cross-sectional residual stress and retained austenite distributions measured by HEXRDcitations
- 2021Ion irradiation-induced localized stress relaxation in W thin film revealed by cross-sectional X-ray nanodiffractioncitations
- 2020Nanoscale stress distributions and microstructural changes at scratch track cross-sections of a deformed brittle-ductile CrN-Cr bilayercitations
- 2020Evolution of stress fields during crack growth and arrest in a brittle-ductile CrN-Cr clamped-cantilever analysed by X-ray nanodiffraction and modellingcitations
- 2019Anisotropy of fracture toughness in nanostructured ceramics controlled by grain boundary designcitations
- 2019Cross-sectional gradients of residual stresses, microstructure and phases in a nitrided steel revealed by 20 µm synchrotron X-ray diffraction
- 2018Influence of Annealing on Microstructure and Mechanical Properties of a Nanocrystalline CrCoNi Medium-Entropy Alloycitations
- 201830 nm X-ray focusing correlates oscillatory stress, texture and structural defect gradients across multilayered TiN-SiOx thin filmcitations
- 2018An investigation on shear banding and crystallographic texture of Ag–Cu alloys deformed by high-pressure torsioncitations
- 2017Phase Decomposition of a Single-Phase AlTiVNb High-Entropy Alloy after Severe Plastic Deformation and Annealingcitations
- 2016In-situ Observation of Cross-Sectional Microstructural Changes and Stress Distributions in Fracturing TiN Thin Film during Nanoindentationcitations
- 2016Integrated experimental and computational approach for residual stress investigation near through-silicon viascitations
- 2014Mono-textured nanocrystalline thin films with pronounced stress-gradientscitations
Places of action
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article
Evolution of stress fields during crack growth and arrest in a brittle-ductile CrN-Cr clamped-cantilever analysed by X-ray nanodiffraction and modelling
Abstract
<p>In order to understand the fracture resistance of nanocrystalline thin films, it is necessary to assess nanoscopic multiaxial stress fields accompanying crack growth during irreversible deformation. Here, a clamped cantilever with dimensions of 200 × 23.7 × 40 μm<sup>3</sup> was machined by focused ion beam milling from a thin film composed of four alternating CrN and Cr layers. The cantilever was loaded to 460 mN in two steps and multiaxial strain distributions were determined by in situ cross-sectional X-ray nanodiffraction. Characterization in as-deposited state revealed the depth variation of fibre texture and residual stress across the layers. The in situ experiment indicated a strong influence of the residual stresses on the cross-sectional stress fields evolution and crack arrest capability at the CrN-Cr interface. In detail, an effective negative stress intensity of −5.9 ± 0.4 MPa m<sup>½</sup> arose as a consequence of the residual stress state. Crack growth in the notched Cr layer occurred at a critical stress intensity of 2.8 ± 0.5 MPa m<sup>½</sup>. The results were complemented by two-dimensional numerical simulation to gain further insight into the elastic-plastic deformation evolution. The quantitative experimental and modelling results elucidate the stepwise nature of fracture advancement across the alternating brittle and ductile layers and their interfaces.</p>