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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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Schwaighofer, Emanuel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2016In Situ Characterization Techniques Based on Synchrotron Radiation and Neutrons Applied for the Development of an Engineering Intermetallic Titanium Aluminide Alloycitations
- 2015In-situ study of the time–temperature-transformation behaviour of a multi-phase intermetallic β-stabilised TiAl alloycitations
- 2014Microstructural design and mechanical properties of a cast and heat-treated intermetallic multi-phase γ-TiAl based alloycitations
- 2014Hot-working behavior of an advanced intermetallic multi-phase $gamma$-TiAl based alloycitations
- 2014In-situ small-angle X-ray scattering study of the Perovskite-type carbide precipitation behavior in a carbon-containing intermetallic TiAl alloy using synchrotron radiationcitations
- 2014Effect of carbon addition on solidification behavior, phase evolution and creep properties of an intermetallic $beta$-stabilized $gamma$-TiAl based alloycitations
- 2014Evolution of the $omega$${_o}$ phase in a $beta$-stabilized multi-phase TiAl alloy and its effect on hardnesscitations
- 2013Thermodynamic Calculations of Phase Equilibria and Phase Fractions of a β-Solidifying TiAl Alloy using the CALPHAD Approachcitations
- 2013Advanced β-Solidifying Titanium Aluminides – Development Status and Perspectivescitations
- 2012Mikrostruktur und mechanische Eigenschaften einer intermetallischen gamma TiAl-Basislegierung für Leichtbauanwendungen
- 2012In situ study of the hot-working behavior of an advanced intermetallic multi-phase gamma-TiAl based alloy
- 2012In situ forging experiments at HARWI II with advanced TiAl alloys
- 2011Phase fraction evolution in a multi-phase intermetallic gamma-TiAl based alloy
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document
In-situ small-angle X-ray scattering study of the Perovskite-type carbide precipitation behavior in a carbon-containing intermetallic TiAl alloy using synchrotron radiation
Abstract
Intermetallic γ-TiAl based alloys of the latest generation, e.g. TNM alloys with a nominal composition of Ti–43.5Al–4Nb–1Mo–0.1B (in at.%), exhibit the potential to be used in modern high-performance combustion engines due to their low density, high strength and creep resistance as well as their good oxidation properties at elevated temperatures. Alloying with C can further improve the high-temperature performance by both solid solution hardening and/or carbide formation. In this study, starting from a supersaturated TNM–1C alloy the precipitation behavior and thermal stability of perovskite-type carbides Ti3AlC during isothermal annealing and ensuing re-heating to 1200 °C are quantified by means of an in situ small-angle X-ray scattering experiment using synchrotron radiation. Complementarily, the formed hierarchical structures on the nano-scale, i.e. p-type carbide precipitates within ultra-fine γ-lamellae of the α2/γ-colonies, were investigated by means of monochromatic high-energy X-ray diffraction in combination with scanning and transmission electron microscopy. Additionally, an explanation of an obtained diffraction phenomenon is given, i.e. streak formation that is caused by the very small lamellar spacing of the γ-phase within the α2/γ-colonies. It was also found that the geometrically well-defined nanostructure allows a correlation between the γ-lath thickness and a characteristic dimension of p-type carbides.