| 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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Pedrazzini, S.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2024Corrosion of 316L exposed to highly concentrated borated water used as shield in nuclear fusion experimental reactors cooling circuitscitations
- 2023Effect of NaCl and Na2SO4 on low temperature corrosion of vapour- and pack-aluminide coated single crystal turbine blade alloys CMSX-4 and RR3010citations
- 2023A review of the factors that can increase the risk of sulfide stress cracking in thermomechanical controlled processed pipeline steelscitations
- 2023Effect of substrate bed temperature on solute segregation and mechanical properties in Ti–6Al–4V produced by laser powder bed fusioncitations
- 2023Effect of alloying on the microstructure, phase stability, hardness, and partitioning behavior of a new dual-superlattice nickel-based superalloycitations
- 2023The impact of trisodium phosphate on chloride-driven under deposit corrosion in steam generators
- 2023Atom probe analysis of BaTiO3 enabled by metallic shieldingcitations
- 2023Effect of Substrate Bed Temperature on Solute Segregation and Mechanical Properties in Ti–6Al–4V Produced by Laser Powder Bed Fusioncitations
- 2022A review on atom probe and correlative microscopy studies of corrosion in nickel-based superalloyscitations
- 2020Influence of powder-bed temperature on the microstructure and mechanical properties of Ti-6Al-4V produced by selective laser melting
- 2020The effect of manganese and silicon additions on the corrosion resistance of a polycrystalline nickel-based superalloycitations
- 2019High strain rate behaviour of nano-quasicrystalline Al93Fe3Cr2Ti2 alloy and compositescitations
- 2017Elevated temperature mechanical behaviour of nanoquasicrystalline Al93Fe3Cr2Ti2 alloy and compositescitations
- 2017On the microtwinning mechanism in a single crystal superalloycitations
- 2017On the microtwinning mechanism in a single crystal superalloycitations
- 2017Elevated temperature mechanical behaviour of nanoquasicrystalline Al$_{93}$Fe$_{3}$Cr$_{2}$Ti$_{2}$ alloy and composites
- 2017An Atom Probe Tomography study of site preference and partitioning in a nickel-based superalloycitations
- 2017Nanoscale stoichiometric analysis of a high-temperature superconductor by atom probe tomographycitations
- 2016Characterisation and mechanical properties of bulk nanostrictured Al-based composites for high temperature applications
- 2016Strengthening mechanisms in an Al-Fe-Cr-Ti nano-quasicrystalline alloy and compositescitations
- 2016Strengthening mechanisms in an Al-Fe-Cr-Ti nano-quasicrystalline alloy and compositescitations
- 2016On the composition of microtwins in a single crystal nickel-based superalloycitations
- 2016An Atom Probe Tomography study of site preference and partitioning in a nickel-based superalloycitations
- 2015On the effect of boron on grain boundary character in a new polycrystalline superalloycitations
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article
On the microtwinning mechanism in a single crystal superalloy
Abstract
© 2017 Acta Materialia Inc. The contribution of a microtwinning mechanism to the creep deformation behaviour of single crystal superalloy MD2 is studied. Microtwinning is prevalent for uniaxial loading along 〈011〉 at 800°C for the stress range 625 to 675 MPa and 825°C for 625 MPa. Using quantitative stereology, the twin fraction and twin thickness are estimated; this allows the accumulated creep strain to be recovered, in turn supporting the role of the microtwinning mode in conferring deformation. Atom probe tomography confirms the segregation of Cr and Co at the twin/parent interface, consistent with the lowering of the stacking fault energy needed to support twin lengthening and thickening. A model for diffusion-controlled growth of twins is proposed and it is used to recover the measured creep strain rate. The work provides the basis for a thermo-mechanical constitutive model of deformation consistent with the microtwinning mechanism.