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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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Burtscher, Michael
Montanuniversität Leoben
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Micro-Mechanical Fracture Investigations on Grain Size Tailored Tungsten-Copper Nanocompositescitations
- 2024Mechanical processing and thermal stability of the equiatomic high entropy alloy TiVZrNbHf under vacuum and hydrogen pressurecitations
- 2023Effect of wire-arc directed energy deposition on the microstructural formation and age-hardening response of the Mg-9Al-1Zn (AZ91) alloycitations
- 2023Deformation and failure behavior of nanocrystalline WCucitations
- 2023Precipitation behavior of hexagonal carbides in a C containing intermetallic γ-TiAl based alloycitations
- 2023From unlikely pairings to functional nanocomposites: FeTi–Cu as a model systemcitations
- 2023On the stability of Ti(Mn,Al)2 C14 Laves phase in an intermetallic Ti–42Al–5Mn alloycitations
- 2023On the stability of Ti(Mn,Al)$_2$ C14 Laves phase in an intermetallic Ti–42Al–5Mn alloycitations
- 2022In situ micromechanical analysis of a nano-crystalline W-Cu compositecitations
- 2022Oxidation resistance of cathodic arc evaporated Cr$_{0.74}$Ta$_{0.26}$N coatingscitations
- 2021High-Temperature Nanoindentation of an Advanced Nano-Crystalline W/Cu Compositecitations
- 2020In situ fracture observations of distinct interface types within a fully lamellar intermetallic TiAl alloycitations
- 2020An Advanced TiAl Alloy for High-Performance Racing Applicationscitations
- 2019The creep behavior of a fully lamellar γ-TiAl based alloycitations
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article
The creep behavior of a fully lamellar γ-TiAl based alloy
Abstract
Intermetallic γ-TiAl based alloys are in focus of interest because of their excellent mechanical properties at high temperatures in combination with their low density. Currently, they are used as turbine blades in aero engines at service temperatures up to around 1023 K. Therefore, the detailed knowledge of the creep behavior is of major interest. In this study, the influence of differently spaced fully lamellar microstructures on the creep behavior of an advanced micro-alloyed γ-TiAl based alloy, a so-called TNM+ alloy, is investigated. Creep tests at 1073 K using stresses of 150 and 200 MPa are conducted applying a constant load. In order to describe the creep behavior, a so-called one-parameter model, which uses the mean lamellar interface spacing as governing parameter, is adopted. The different lamellar spacings of the specimens are analyzed by means of transmission electron microscopy. Finally, based on a new constitutive law creep curves are calculated and compared with experimentally determined creep curves. The results are discussed in the light of existing literature.