| 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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Shen, Jiajia
University of Exeter
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (40/40 displayed)
- 2024Unleashing the microstructural evolutions during hot deformation of as-cast AlCoCrFeNi$_{2.1}$ eutectic high entropy alloycitations
- 2024Evolution of microstructure and deformation mechanisms in a metastable Fe42Mn28Co10Cr15Si5 high entropy alloycitations
- 2024Unraveling the formation of L1$_{2}$ nano-precipitates within the FCC-phase in AlCoCrFeNi$_{2.1}$ eutectic high entropy alloycitations
- 2024Unleashing the microstructural evolutions during hot deformation of as-cast AlCoCrFeNi2.1 eutectic high entropy alloycitations
- 2024Quantifying efficient shape-shiftingcitations
- 2024Quantifying efficient shape-shifting:Energy barrier measurement in multi-stable lattice metamaterialscitations
- 2024Synergistic effects of Monel 400 filler wire in gas metal arc welding of CoCrFeMnNi high entropy alloycitations
- 2024Evolution of microstructure and deformation mechanisms in a metastable Fe 42 Mn 28 Co 10 Cr 15 Si 5 high entropy alloy:A combined in-situ synchrotron X-ray diffraction and EBSD analysiscitations
- 2024Wire arc additive manufacturing of a high-strength low-alloy steel part: environmental impacts, costs, and mechanical propertiescitations
- 2024Wire arc additive manufacturing of a high-strength low-alloy steel part ; environmental impacts, costs, and mechanical propertiescitations
- 2024Evolution of microstructure and deformation mechanisms in a metastable Fe42Mn28Co10Cr15Si5 high entropy alloy ; A combined in-situ synchrotron X-ray diffraction and EBSD analysiscitations
- 2024Unraveling the formation of L12 nano-precipitates within the FCC-phase in AlCoCrFeNi2.1 eutectic high entropy alloycitations
- 2023Microstructure evolution and mechanical properties in a gas tungsten arc welded Fe42Mn28Co10Cr15Si5 metastable high entropy alloycitations
- 2023Impact of Arc‐Based Welding on the Microstructure Evolution and Mechanical Properties in Newly Developed Cr29.7Co29.7Ni35.4Al4Ti1.2 Multi‐Principal Element Alloycitations
- 2023Wire and arc additive manufacturing of Fe-based shape memory alloys ; Microstructure, mechanical and functional behaviorcitations
- 2023Microstructure evolution and mechanical properties in a gas tungsten arc welded Fe$_{42}$Mn$_{28}$Co$_{10}$Cr$_{15}$Si$_5$ metastable high entropy alloycitations
- 2023Evolution of microstructure and mechanical properties in gas tungsten arc welded dual-phase Fe$_{50}$Mn$_{30}$Co$_{10}$Cr$_{10}$ high entropy alloycitations
- 2023Microstructures in arc-welded Al$_{10}$Co$_{25}$Cr$_{8}$Fe$_{15}$Ni$_{36}$Ti$_{6}$ and A$l_{10.87}$Co$_{21.74}$Cr$_{21.74}$Cu$_{2.17}$Fe$_{21.74}$Ni$_{21.74}$ multi-principal element alloys: Comparison between experimental data and thermodynamic predictionscitations
- 2023Microstructures in arc-welded Al10Co25Cr8Fe15Ni36Ti6 and Al10.87Co21.74Cr21.74Cu2.17Fe21.74Ni21.74 multi-principal element alloyscitations
- 2023Spinodal Decomposition of B2-phase and Formation of Cr-Rich Nano-precipitates in AlCoCrFeNi2.1 Eutectic High-Entropy Alloycitations
- 2023Wire and arc additive manufacturing of Fe-based shape memory alloys: microstructure, mechanical and functional behaviorcitations
- 2023Deformation behavior and strengthening effects of an eutectic AlCoCrFeNi2.1 high entropy alloy probed by in-situ synchrotron X-ray diffraction and post-mortem EBSDcitations
- 2023Wire and arc additive manufacturing of Fe-based shape memory alloyscitations
- 2023Evolution of microstructure and mechanical properties in gas tungsten arc welded dual-phase Fe50Mn30Co10Cr10 high entropy alloycitations
- 2022On the short-time thermal phase-stability of as-cast AlCoCrFeNi2.1 eutectic high entropy alloycitations
- 2022Gas tungsten arc welding of as-cast AlCoCrFeNi2.1 eutectic high entropy alloycitations
- 2022Improving the ductility in laser welded joints of CoCrFeMnNi high entropy alloy to 316 stainless steelcitations
- 2022Improving the ductility in laser welded joints of CoCrFeMnNi high entropy alloy to 316 stainless steelcitations
- 2022Steel-copper functionally graded material produced by twin-wire and arc additive manufacturing (T-WAAM)citations
- 2022Gas tungsten arc welding of as-cast AlCoCrFeNi$_{2.1}$ eutectic high entropy alloycitations
- 2022Wire and arc additive manufacturing of 316L stainless steel/Inconel 625 functionally graded material ; Development and characterizationcitations
- 2022Probing the stability landscape of prestressed stayed columns susceptible to mode interactioncitations
- 2022Wire and arc additive manufacturing of 316L stainless steel/Inconel 625 functionally graded material: development and characterizationcitations
- 2022Wire and arc additive manufacturing of 316L stainless steel/Inconel 625 functionally graded materialcitations
- 2021In-situ synchrotron X-ray diffraction analysis of the elastic behaviour of martensite and H-phase in a NiTiHf high temperature shape memory alloy fabricated by laser powder bed fusioncitations
- 2021Laser welding of H-phase strengthened Ni-rich NiTi-20Zr high temperature shape memory alloycitations
- 2021In-situ synchrotron X-ray diffraction analysis of the elastic behaviour of martensite and H-phase in a NiTiHf shape memory alloy fabricated by laser powder bed fusioncitations
- 2021Effect of heat treatments on 316 stainless steel parts fabricated by wire and arc additive manufacturing : Microstructure and synchrotron X-ray diffraction analysiscitations
- 2021Effect of heat treatments on 316 stainless steel parts fabricated by wire and arc additive manufacturing: Microstructure and synchrotron X-ray diffraction analysiscitations
- 2020Newton’s method for experimental path-following of nonlinear structures
Places of action
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article
Unleashing the microstructural evolutions during hot deformation of as-cast AlCoCrFeNi2.1 eutectic high entropy alloy
Abstract
Many applications with potential use of high entropy alloys (HEAs) involve thermo-mechanical processing. The principal aim of this study is to elucidate the deformation mechanisms of the as-cast AlCoCrFeNi2.1 eutectic high entropy alloy (EHEA) at elevated temperatures. This investigation involves considering the interplay between phase transformations affecting microstructural evolutions and restoration mechanisms, which will be correlated with flow behavior. This correlation is investigated using in-depth characterization techniques coupled with flow curve analysis. The as-solidified microstructure consists of five phases, with disordered FCC and B2 phases dominating. Thermo-mechanical processing at elevated temperatures leads to the transformation of primary L12 precipitates into B2 precipitates. At high temperatures, unexpected deformation twinning occurs as a result of stress concentration caused by the B2 precipitates and Al depletion of the FCC matrix. In addition, the B2 precipitates promote strain accommodation within the FCC dendritic regions, leading to dendrite fragmentation and subsequent dynamic recrystallization (DRX) at 800 °C through continuous dynamic recrystallization (CDRX). Additionally, by increasing the deformation temperature to 1000 °C, DRX was suppressed, while dynamic recovery (DRV) was favored. This can be attributed to the dynamic dissolution of the disordered BCC and sigma (σ) phases, along with the dynamic transformation of the primary L12 precipitates, which effectively diminished the driving force of DRX.