| 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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Escher, B.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2020Phase formation of a biocompatible Ti-based alloy under kinetic constraints studied via in-situ high-energy X-ray diffraction
- 2019Stability of the B2 CuZr phase in Cu-Zr-Al-Sc bulk metallic glass matrix compositescitations
- 2017Structure of glassy Cu<inf>47.5</inf>Zr<inf>47.5</inf>Ag<inf>5</inf> investigated with neutron diffraction with isotopic substitution, X-ray diffraction, EXAFS and reverse Monte Carlo simulationcitations
- 2017Mapping the cyclic plastic zone to elucidate the mechanisms of crack tip deformation in bulk metallic glassescitations
- 2017Influence of the Ag concentration on the medium-range order in a CuZrAlAg bulk metallic glasscitations
- 2016Mapping of residual strains around a shear band in bulk metallic glass by nanobeam X-ray diffractioncitations
- 2016Influence of Ag and Co additions on glass-forming ability, thermal and mechanical properties of Cu–Zr–Al bulk metallic glassescitations
- 2015Structural features of plastic deformation in bulk metallic glassescitations
- 2015Atomic structure and formation of CuZrAl bulk metallic glasses and compositescitations
- 2014Microstructural Evolution and Mechanical Behaviour of Metastable Cu-Zr-Co Alloyscitations
Places of action
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article
Mapping the cyclic plastic zone to elucidate the mechanisms of crack tip deformation in bulk metallic glasses
Abstract
<jats:p>Developing damage-tolerant bulk metallic glasses (BMGs) requires knowledge of the physical mechanisms governing crack propagation. While fractography suggests that fatigue crack propagation occurs in an incremental manner, conclusive evidence of alternating crack tip blunting and resharpening is lacking. By mapping the strain fields in both the monotonic and cyclic plastic zones, it is shown that the characteristic compressive stresses required to resharpen the crack tip are developed in a BMG upon unloading. This result confirms the mechanism of fatigue crack propagation in BMGs. Broader implications of these findings are that the effect of shear banding is rather diffuse and plastic deformation ahead of a stress concentration, such as a crack tip, appears to extend well beyond the extent of visible shear bands on the sample surface.</jats:p>