| 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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Chen, H.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (48/48 displayed)
- 2024New insights into the character of austenite-ferrite boundaries in an additively manufactured duplex stainless steelcitations
- 2024402 Tb/s GMI data-rate OESCLU-band Transmissioncitations
- 2023Shear yielding and crazing in dry and wet amorphous PLA at body temperaturecitations
- 2023The effect of elastic and plastic strain on surface and intergranular oxidation of alloy 600 in simulated PWR primary watercitations
- 2023A 19% efficient and stable organic photovoltaic device enabled by a guest nonfullerene acceptor with fibril-like morphologycitations
- 2022Intergranular precipitation and chemical fluctuations in an additively manufactured 2205 duplex stainless steelcitations
- 2022Experimental characterisation and modelling of the strain rate dependent mechanical response of a filled thermo-reversible supramolecular polyurethanecitations
- 2022Characterization and modelling of bisphenol-a type epoxy polymer over a wide range of rates and temperaturescitations
- 2021Estimation of the mechanical properties of a transversely isotropic material from shear wave fields via artificial neural networks.citations
- 2021On the pitting corrosion of 2205 duplex stainless steel produced by laser powder bed fusion additive manufacturing in the as-built and post-processed conditionscitations
- 2021Microstructure-property gradients in Ni-based superalloy (Inconel 738) additively manufactured via electron beam powder bed fusioncitations
- 2021Lactone backbone density in rigid electron-deficient semiconducting polymers enabling high n-type organic thermoelectric performancecitations
- 2021Microstructural and chemical constitution of the oxide scale formed on a pesting-resistant Mo-Si-Ti alloycitations
- 2021Vibration fatigue analysis of circumferentially notched specimens under coupled multiaxial random vibration environmentscitations
- 2021Linking Glass‐Transition Behavior to Photophysical and Charge Transport Properties of High‐Mobility Conjugated Polymers
- 2020Microbiologically influenced stress corrosion cracking of cable bolts in underground mines
- 2020Linking Glass-Transition Behavior to Photophysical and Charge Transport Properties of High-Mobility Conjugated Polymers
- 2020A new strategy to intrinsically protect refractory metal based alloys at ultra high temperaturescitations
- 2020Application of linear viscoelastic continuum damage theory to the low and high strain rate response of thermoplastic polyurethanecitations
- 2020Effect of Y Additions on the Oxidation Behaviour of Novel Refractory High-Entropy Alloy NbMoCrTiAl at 1000 °C in Aircitations
- 2019Thermal Analysis and Production of As-Cast Al 7075/6060 Bilayer Billetscitations
- 2019Crystallographic ordering in a series of Al-containing refractory high entropy alloys Ta-Nb-Mo-Cr-Ti-Alcitations
- 2018Influence of the nanofiber chemistry and orientation of biodegradable poly(butylene succinate)-based scaffolds on osteoblast differentiation for bone tissue regenerationcitations
- 2018Effect of microalloying with silicon on high temperature oxidation resistance of novel refractory high-entropy alloy Ta-Mo-Cr-Ti-Alcitations
- 2018Contribution of Lattice Distortion to Solid Solution Strengthening in a Series of Refractory High Entropy Alloyscitations
- 2018A generic interface to reduce the efficiency-stability-cost gap of perovskite solar cellscitations
- 2018Genetic Variant of MYLK4 Gene and its Association with Growth Traits in Chinese Cattle.citations
- 2018Stress corrosion failure of cable bolts in underground mines
- 2018Peculiarities of deformation of CoCrFeMnNi at cryogenic temperaturescitations
- 2017A generic interface to reduce the efficiency-stability-cost gap of perovskite solar cellscitations
- 2017High-Temperature Oxidation Behavior of Refractory High-Entropy Alloys: Effect of Alloy Compositioncitations
- 2017High-performance direct conversion X-ray detectors based on sintered hybrid lead triiodide perovskite waferscitations
- 2017Dielectric and polarization studies of magnetoelectric coupling in non-relaxor Pb(Fe.sub.1/2./sub.Ta.sub.1/2./sub.)O.sub.3./sub. multiferroic ceramicscitations
- 2016Exploring the Limiting Open-Circuit Voltage and the Voltage Loss Mechanism in Planar CH<inf>3</inf>NH<inf>3</inf>PbBr<inf>3</inf> Perovskite Solar Cellscitations
- 2016Granular media-based tube press hardeningcitations
- 2016Microstructure and mechanical properties at elevated temperatures of a new Al-containing refractory high-entropy alloy Nb-Mo-Cr-Ti-Alcitations
- 2016High temperature oxidation behavior of an equimolar refractory metal-based alloy [Formula presented] with and without Si additioncitations
- 2016Perovskite solar cells fabricated using dicarboxylic fullerene derivativescitations
- 2016Microstructure Evolution in a New Refractory High-Entropy Alloy W-Mo-Cr-Ti-Alcitations
- 2016Photoinduced degradation of methylammonium lead triiodide perovskite semiconductorscitations
- 2016Extending the environmental lifetime of unpackaged perovskite solar cells through interfacial designcitations
- 2016Overcoming the Thermal Instability of Efficient Polymer Solar Cells by Employing Novel Fullerene-Based Acceptorscitations
- 2015Construction of a photocatalytic de-polluting field site in the Leopold II tunnel in Brusselscitations
- 2015Construction of a photocatalytic de-polluting field site in the Leopold II tunnel in Brusselscitations
- 2013A multi-technique characterization of electroless gold contacts on single crystal CdZnTe radiation detectorscitations
- 2012Self-encapsulated hollow microstructures formed by electric field-assisted capillaritycitations
- 2010Aggregation of zinc oxide nanoparticles: From non-aqueous dispersions to composites used as photoactive layers in hybrid solar cellscitations
- 2007Quasivertical line in the phase diagram of single crystals of Pb Mg1 3 Nb2 3 O3 -x PbTiO3 (x=0.00, 0.06, 0.13, and 0.24) with a giant piezoelectric effectcitations
Places of action
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article
Crystallographic ordering in a series of Al-containing refractory high entropy alloys Ta-Nb-Mo-Cr-Ti-Al
Abstract
High entropy alloys based on the Ta–Nb–Mo–Cr–Ti–Al system are expected to possess high creep and oxidation resistance as well as outstanding specific mechanical properties due to presumed high melting points and low densities. However, we recently reported that arc-melted and subsequently homogenized alloys within this system exhibit a lack of ductility up to 600 °C [H. Chen et al. in Metall. Mater. Trans. A 49 (2018) 772–781 and J. Alloys Cmpd. 661 (2016) 206–215]. Thermodynamic calculations suggest the formation of a B2-type ordered phase below the homogenization temperature. In the present article, we provide results of a detailed microstructural characterization of a series of Ta–Nb–Mo–Cr–Ti–Al derivatives and evaluate if B2-type ordering could be the origin for the observed lack of ductility. Backscatter electron (BSE) imaging, energy dispersive X-ray spectroscopy (EDX) and atom probe tomography (APT) were used to verify uniform elemental distribution after homogenization. X-ray diffraction (XRD) patterns indicate both, A2 or B2-type crystal structure, whereas transmission electron microscopy (TEM) diffraction experiments unambiguously confirm B2-type order in the as-homogenized state of all investigated alloys. In MoCrTiAl, planar defects that show antiphase boundary contrast with a {100}-type habit plane were detected by TEM dark field (DF) imaging. They are wetted by a Cr-enriched and Ti-depleted layer as confirmed by scanning transmission electron microscopy (STEM)-EDX line scans as well as APT analyses. The planar defects arise from a disorder-order solid-state phase transformation during cooling, as indicated by differential scanning calorimetry (DSC).