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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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De Luca, Anthony
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2023Heat treatment response and mechanical properties of a Zr-modified AA2618 aluminum alloy fabricated by laser powder bed fusioncitations
- 2023Effect of HfO 2 dispersoids on the microstructure of a Ni-Cr-Al-Ti superalloy processed by laser-based powder-bed fusioncitations
- 2022Effect of Y 2 O 3 dispersoids on microstructure and creep properties of Hastelloy X processed by laser powder-bed fusioncitations
- 2022Processability, microstructure and precipitation of a Zr-modified 2618 aluminium alloy fabricated by laser powder bed fusioncitations
- 2022High-temperature creep properties of an additively manufactured Y 2 O 3 oxide dispersion-strengthened Ni–Cr–Al–Ti γ/γ’ superalloycitations
- 2022Effect of oxide dispersoids on precipitation-strengthened Al-1.7Zr (wt %) alloys produced by laser powder-bed fusioncitations
- 2021Influence of Hf on the heat treatment response of additively manufactured Ni-base superalloy CM247LCcitations
- 2021Precipitation in a 2xxx series Al-Cu-Mg-Zr alloy fabricated by laser powder bed fusioncitations
- 2021Effects of W micro-additions on precipitation kinetics and mechanical properties of an Al–Mn–Mo–Si–Zr–Sc–Er alloycitations
- 2021Individual and synergistic effects of Mn and Mo micro-additions on precipitation and strengthening of a dilute Al-Zr-Sc-Er-Si alloycitations
- 2021Thermal stability and influence of Y 2 O 3 dispersoids on the heat treatment response of an additively manufactured ODS Ni-Cr-Al-Ti γ/γ′ superalloycitations
- 2021Evolution of Y 2 O 3 dispersoids during laser powder bed fusion of oxide dispersion strengthened Ni-Cr-Al-Ti γ / γ ’ superalloycitations
- 2020Combining alloy and process modification for micro-crack mitigation in an additively manufactured Ni-base superalloycitations
- 2020Effect of microadditions of Mn and Mo on dual L1 2 - and α-precipitation in a dilute Al-Zr-Sc-Er-Si alloycitations
- 2020Coarsening- and creep resistance of precipitation-strengthened Al–Mg–Zr alloys processed by selective laser meltingcitations
- 2020Effects of Mn and Mo Micro-additions on Al–Zr–Sc–Er–Si Mechanical Propertiescitations
- 2020Mn and Mo additions to a dilute Al-Zr-Sc-Er-Si-based alloy to improve creep resistance through solid-solution- and precipitation-strengtheningcitations
- 2019Effects of Si and Fe micro-additions on the aging response of a dilute Al-0.08Zr-0.08Hf-0.045Er at.% alloycitations
- 2019Effects of Si and Fe micro-additions on the aging response of a dilute Al-0.08Zr-0.08Hf-0.045Er at.% alloycitations
- 2019Effects of Mo and Mn microadditions on strengthening and over-aging resistance of nanoprecipitation-strengthened Al-Zr-Sc-Er-Si alloyscitations
- 2018Scandium-enriched nanoprecipitates in aluminum providing enhanced coarsening and creep resistancecitations
- 2018Redistribution of Metallic Impurities in Si during Annealing and Oxidation: W and Fe
- 2018Microstructure and mechanical properties of a precipitation-strengthened Al-Zr-Sc-Er-Si alloy with a very small Sc contentcitations
- 2018Effects of Nb and Ta additions on the strength and coarsening resistance of precipitation-strengthened Al-Zr-Sc-Er-Si alloyscitations
- 2017Effect of vanadium micro-alloying on the microstructural evolution and creep behavior of Al-Er-Sc-Zr-Si alloyscitations
- 2016Mechanical properties and optimization of the aging of a dilute Al-Sc-Er-Zr-Si alloy with a high Zr/Sc ratiocitations
- 2013Evidence of perfect dislocation glide in nanoindented 4H-SiCcitations
Places of action
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article
Effect of vanadium micro-alloying on the microstructural evolution and creep behavior of Al-Er-Sc-Zr-Si alloys
Abstract
Al-Er-Sc-Zr-Si alloys, strengthened by L12-ordered, coherent Al3(Er,Sc,Zr) nanoscale precipitates, can be used for automotive and aerospace applications up to 400 °C. Vanadium, due to its small diffusivity in aluminum and its ability to form L12-ordered tri-aluminide precipitates, is a possible micro-alloying addition for further improving the service temperature of these alloys. Moreover, vanadium-containing Al3(Er,Sc,Zr,V) precipitates are anticipated to have a smaller lattice parameter mismatch with the matrix, thereby improving the alloy's coarsening resistance. In this study, the temporal evolution of microstructural and mechanical properties of an Al-0.005Er-0.02Sc-0.07Zr-0.06Si alloy micro-alloyed with V are investigated utilizing isochronal, isothermal and double-aging treatments and compared to the results obtained from an alloy that does not contain V, but otherwise has the same composition. Both isochronal and isothermal aging treatments reveal slower precipitation and coarsening kinetics for the V-containing alloy. A peak microhardness value of ∼600 MPa is obtained after a double-aging treatment at 350 °C/16 h, followed by aging at 400 °C for 12 h. Transmission electron microscopy reveals a duplex-size precipitate microstructure, with the smaller precipitates having a mean radius <3 nm. Despite the expectation of a reduced creep resistance due to a lower precipitate/matrix lattice mismatch, both alloys have similar creep behavior at 400 °C, characterized by a threshold stress of 7.5 and 8 MPa under peak-aged and over-aged conditions, respectively. Thus, micro-additions of V to an Al-Er-Sc-Zr-Si alloy lead to enrichment of V in the Al3(Er,Sc,Zr,V) nano-precipitates, improving their coarsening resistance without deteriorating their ability to block dislocations under creep at 400 °C.