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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
Strengthening mechanisms in an Al-Fe-Cr-Ti nano-quasicrystalline alloy and composites
Abstract
<p>We report a study of the structure-processing-property relationships in a high strength Al<sub>93</sub>Fe<sub>3</sub>Cr<sub>2</sub>Ti<sub>2</sub> nano-quasicrystalline alloy and composites containing 10 and 20 vol% ductilising pure Al fibres. The superimposed contributions of several different strengthening mechanisms have been modelled analytically using data obtained from systematic characterisation of the monolithic alloy bar. An observed yield strength of 544 MPa has been substantiated from a combination of solid solution strengthening, work hardening, precipitation hardening and Hall-Petch grain size dependent effects. These materials have been shown by other authors in previous published work to be highly sensitive to the size distribution of particles in the powder from which they are made, and the subsequent thermomechanical processing conditions. The processing condition employed in this study provided micron-sized grains with a strong [111] preferential orientation along the extrusion direction and a bimodal size distribution of the icosahedral nano-quasicrystalline precipitates. Both were deemed to be a significant contributor to the high yield strength observed. The addition of pure Al fibres was found to decrease the yield strength linearly with increasing Al content, and to augment the ductility of the composites.</p>