| 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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Vermaut, Philippe
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024From heterogeneous nucleation to homogeneous spatial distribution of hardening precipitates: An in situ TEM study on cold-rolled AA2024-T3 (Al–Cu–Mg)citations
- 2023Mechanisms underlying enhanced strength-ductility combinations in TRIP/TWIP Ti-12Mo alloy engineered via isothermal omega precipitationcitations
- 2023{332}<113> mechanical detwinning as a deformation mechanism in the β-metastable Ti-15Mo alloy during cyclic loadingcitations
- 2020Effect of Mo, Ta, V and Zr on a duplex bcc+orthorhombic refractory complex concentrated alloy using diffusion couplescitations
- 2019On the heterogeneous nature of deformation in a strain-transformable beta metastable Ti-V-Cr-Al alloycitations
- 2019Design and development of a dual-phase TRIP-TWIP alloy for enhanced mechanical propertiescitations
- 2018Martensite crystal structure in Ru-based high temperature shape memory alloyscitations
- 2017From diluted solid solutions to high entropy alloys: On the evolution of properties with composition of multi-components alloyscitations
- 2016Constrained hierarchical twinning in Ru-based high temperature shape memory alloyscitations
- 2012On the design of new β-metastable titanium alloys with improved work hardening rate thanks to simultaneous TRIP and TWIP effectscitations
- 2012High Performance Beta Titanium Alloys as a New Material Perspective for Cardiovascular Applicationscitations
- 2011Beta titanium alloys with very high ductility induced by complex deformation mechanisms: A new material perspective for coronary stent applicationscitations
Places of action
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article
On the heterogeneous nature of deformation in a strain-transformable beta metastable Ti-V-Cr-Al alloy
Abstract
Ti-10V-4Cr-1Al wt% (TVCA) is a new grade of titanium alloy, developed to combine twinning induced plasticity (TWIP) and transformation induced plasticity (TRIP) effects. The TVCA alloy exhibits a very high strain-hardening rate and an excellent balance between strength and ductility for great potential in aerospace applications. Deformation mechanisms are investigated using in-situ techniques as synchrotron X-ray diffraction (SXRD) and in-situ electron backscatter diffraction (EBSD) analysis during tensile strain, as well as transmission electron microscopy (TEM). The results reveal that permanent {332}<113> mechanical twinning and an unstable orthorhombic α” martensite are the major deformation products. This study aims at unveiling the interaction and co-deformation of the various deformation features, that lead to the outstanding mechanical properties of the alloy. The very high strain hardening rate could be explained by the simultaneous activation of two different deformation modes, the primary TRIP mode on one side, and the hybrid TWIP and secondary TRIP mode on the other one, in different grains, resulting in in-grain dynamic hardening (Hall-Petch)/softening (α” martensite) effects and meso-scale dynamic mechanical contrast. Selection of the deformation mechanism – TRIP or TWIP –, which seems to be inhomogeneous, at both the inter- and the intra-granular level, is investigated.