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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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Zhang, Siyuan
Engineering and Physical Sciences Research Council
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2024Ostwald Ripening of Ag<sub>2</sub>Te Precipitates in Thermoelectric PbTe: Effects of Crystallography, Dislocations, and Interatomic Bondingcitations
- 2024The effect of Laves phases and nano-precipitates on the electrochemical corrosion resistance of Mg-Al-Ca alloys under alkaline conditionscitations
- 2024How solute atoms control aqueous corrosion of Al-alloyscitations
- 2024Operando Insights on the Degradation Mechanisms of Rhenium‐Doped and Undoped Molybdenum Disulfide Nanocatalysts During Hydrogen Evolution Reaction and Open‐Circuit Conditionscitations
- 2024Ostwald Ripening of Ag2Te precipitates in thermoelectric PbTe: effects of crystallography, dislocations, and interatomic bondingcitations
- 2023Grain Boundary Phases in NbFeSb Half‐Heusler Alloys: A New Avenue to Tune Transport Properties of Thermoelectric Materialscitations
- 2023Laves phases in Mg-Al-Ca alloys and their effect on mechanical properties
- 2023Tailoring the Plasticity of Topologically Close‐packed Phases via the Crystals’ Fundamental Building Blockscitations
- 2023Medium‐ and High‐Entropy Spinel Ferrite Nanoparticles via Low‐Temperature Synthesis for the Oxygen Evolution Reactioncitations
- 2023Sodium tantalates: monitoring crystallization via in situ total X-ray scatteringcitations
- 2023Fabrication and extreme micromechanics of additive metal microarchitecturescitations
- 2023Constructing phase diagrams for defects by correlated atomic-scale characterizationcitations
- 2023Tailoring the Plasticity of Topologically Close‐Packed Phases via the Crystals’ Fundamental Building Blockscitations
- 2023Operando Insights on the Degradation Mechanisms of Rhenium-doped and Undoped Molybdenum Disulfide Nanocatalysts for Electrolyzer Applications
- 2023Enhancing the Thermoelectric Properties via Modulation of Defects in <i>P</i>‐Type MNiSn‐Based (M = Hf, Zr, Ti) Half‐Heusler Materialscitations
- 2022Exploring stability of a nanoscale complex solid solution thin film by in situ heating transmission electron microscopycitations
- 2022Perovskite-organic tandem solar cells with indium oxide interconnectcitations
- 2022Elemental (im-)miscibility determines phase formation of multinary nanoparticles co-sputtered in ionic liquidscitations
- 2021Ruddlesden-Popper-Phase Hybrid Halide Perovskite/Small-Molecule Organic Blend Memory Transistorscitations
- 2021Monitoring the Structure Evolution of Titanium Oxide Photocatalysts: From the Molecular Form via the Amorphous State to the Crystalline Phasecitations
- 2020Structural Evolution of Ni-Based Co-Catalysts on [Ca2Nb3O10](-) Nanosheets during Heating and Their Photocatalytic Propertiescitations
- 2020High-throughput characterization of Ag–V–O nanostructured thin-film materials libraries for photoelectrochemical solar water splittingcitations
- 2019Ti and its alloys as examples of cryogenic focused ion beam milling of environmentally-sensitive materialscitations
- 2019Photocurrent recombination through surface segregation in Al-Cr-Fe-O photocathodescitations
- 2015Piezoelectric coefficients and spontaneous polarization of ScAlNcitations
Places of action
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document
Laves phases in Mg-Al-Ca alloys and their effect on mechanical properties
Abstract
Mg-Al-Ca alloys with Laves phase reinforcement are suitable for structural applications. The composition, crystal structure, and distribution of Laves phases can be tuned by the alloy composition and heat treatment, which subsequently influence their mechanical properties. In this study, three model alloys Mg-6Al-2Ca, Mg-5Al-3Ca and Mg-4Al-4Ca were investigated, which include C15, C36, and C14 Laves phases. The as-cast alloys have interconnected Laves phases that form a skeleton structure. After annealing, they became more rounded particles, while the metastable C36 phase was transformed to C15. The Laves phases in different crystal structures exhibit distinct ranges of chemical compositions and lattice parameters. Well defined orientation relationships were observed between small C15 platelets and the Mg matrix (Mg(0002) // C15(1 1 1), Mg[112̅0] // C15[112̅]). Another pair of parallel orientations was found between Mg(11̅01) and the c-plane of hexagonal C36/C14. Nevertheless, most coarsened Laves phases have incoherent interfaces with the matrix and hinder dislocation slip transfer. The annealed alloys have lower yield strength than their as-cast counterparts, but higher ductility or ultimate tensile strength. The yield strengths of as-cast alloys are correlated to the interconnectivity of the skeleton, whereas those of annealed alloys are related to the spacing between Laves phases.