| 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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Malard, Benoît
Institutul Naţional al Patrimoniului
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2024Multiscale study of additively manufactured 316 L microstructure sensitivity to heat treatment over a wide temperature rangecitations
- 2024New insights on the origin of grain refinement in 316L additively manufactured alloyscitations
- 2022Multi-scale in situ mechanical investigation of the superelastic behavior of a Cu–Al–Be polycrystalline shape memory alloycitations
- 2022Multi-scale in situ mechanical investigation of the superelastic behavior of a Cu–Al–Be polycrystalline shape memory alloycitations
- 2021Microstructural and Chemical Changes of a Ti-Stabilized Austenitic Stainless Steel After Exposure to Liquid Sodium at Temperatures Between 500 °C and 650 °Ccitations
- 2021Determination of residual stress gradient in a Ti-stabilized austenitic stainless steel cladding candidate after carburization in liquid sodium at 500 °C and 600 °Ccitations
- 2020Thermal stability of Mg2Si0.55Sn0.45 for thermoelectric applicationscitations
- 2020Spheroidal graphite coalescence during thermal cycling in the ferritic domain of a high-silicon cast iron studied by optical microscopy and X-ray computed tomographycitations
- 2020Coarsening and dendritic instability of spheroidal graphite in high silicon cast iron under thermal cycling in the ferritic domaincitations
- 2020Effect of cast iron microstructure on adherence of an epoxy protectioncitations
- 2019Influence of dislocations on hydrogen diffusion and trapping in an Al-Zn-Mg aluminium alloycitations
- 2019Elastic properties of the α' martensitic phase in the Ti-6Al-4V alloy obtained by additive manufacturingcitations
- 2019Carburization of austenitic and ferritic stainless steels in liquid sodium: Comparison between experimental observations and simulationscitations
- 2019Solid-state phase transformation in a lithium disilicate-based glass-ceramiccitations
- 2018High-Temperature Oxidation of a High Silicon SiMo Spheroidal Cast Iron in Air with <i>In Situ</i> Change in H<sub>2</sub>O Contentcitations
- 2018High-Temperature Oxidation of a High Silicon SiMo Spheroidal Cast Iron in Air with In Situ Change in H 2 O Contentcitations
- 2017Residual stresses induced by laser welding process in the case of a dual-phase steel DP600: Simulation and experimental approachescitations
- 2017Isothermal and Cyclic Aging of 310S Austenitic Stainless Steelcitations
- 2016Relationship between the volume of the unit cell of hexagonal-close-packed Ti, hardness and oxygen content after α-case formation in Ti–6Al–2Sn–4Zr–2Mo–0.1Si alloycitations
- 2016Évaluation des contraintes résiduelles dans l’alliages Ti-6Al-4V mis en forme par SLM
- 2015Microstructure distribution in an AA2050 T34 friction stir weld and its evolution during post-welding heat treatmentcitations
- 2015Microstructure distribution in an AA2050 T34 friction stir weld and its evolution during post-welding heat treatmentcitations
- 2012Advances in martensitic transformations in Cu-based shape memory alloys achieved by in situ neutron and synchrotron X-ray diffraction methodscitations
- 2012Internal stresses in steel plate generated by shape memory alloy insertscitations
- 2012Advances in martensitic transformations in Cu-based shape memory alloys achieved by in situ neutron and synchrotron X-ray diffraction methods ; Use of large scale facilities for research in metallurgycitations
- 2011In-situ investigation of the fast microstructure evolution during electropulse treatment of cold drawn NiTi wirescitations
- 2011In situ synchrotron analysis of lattice rotations in individual grains during stress-induced martensitic transformations in a polycrystalline CuAlBe shape memory alloycitations
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article
Multi-scale in situ mechanical investigation of the superelastic behavior of a Cu–Al–Be polycrystalline shape memory alloy
Abstract
The superelastic behavior of a Cu–Al–Be alloy was studied in situ during tensile tests combining two high-energy synchrotron techniques. The initial microstructure was reconstructed using diffraction contrast tomography; the elastic strain and stress tensors of each individual grain were then determined using a 3D X-ray diffraction microscopy technique. The alloy was heat-treated until coarse grains formed, and the probed volume fraction was limited to ∼ 200 grains. The mean grain size, as estimated from both techniques, agreed well with that determined by optical microscopy, i.e., approximately 130 µm. During the early stage of the martensitic transformation (MT), 187 grains with strong stress heterogeneities were detected in the elastic domain; in particular, the stress values along the tensile direction varied by a factor of three between different grains. The reconstructed 3D microstructure served as input data for finite element modeling, wherein a micromechanical approach factoring in the martensitic transformation was used to simulate the in situ tensile tests. The coupled numerical and experimental tensors of the 187 grains confirmed strong stress heterogeneities between them. The influence of the position and crystallographic orientation of the neighboring grains were also examined.