| 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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Cruchley, Sam
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2016An overview of the oxidation of Ni-based superalloys for turbine disc applicationscitations
- 2016A Novel Method for Uniaxial HCF Testing of Austenitic Stainless Steels
- 2015The oxidation damage of Ni-based superalloy, RR1000, with different surface modifications and the role of oxidation in fatigue crack initiation
- 2015The role of oxidation damage in fatigue crack initiation of an advanced Ni-based superalloycitations
- 2015Comparison of Chromia Growth Kinetics in a Ni-based Superalloy, with and without Shot-peeningcitations
- 2015Effect of prior oxidation on high cycle fatigue performance of RR1000 and role of oxidation in fatigue crack initiationcitations
- 2014Characterisation of subsurface oxidation damage in Ni based superalloy, RR1000citations
Places of action
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article
Effect of prior oxidation on high cycle fatigue performance of RR1000 and role of oxidation in fatigue crack initiation
Abstract
The effect of prior oxidation on the room temperature fatigue life of coarse grained Ni based superalloy, RR1000 has been performed at an R ratio of 0·1 with two pre-oxidation times: 100 and 2000 h at 700°C. These pre-exposures produce extensive oxidation damage. The room temperature high cycle fatigue life of the pre-oxidised specimens has been compared to as received specimens. At a maximum applied stress of 800 MPa a significant fatigue life deficit is observed in the pre-oxidised testpieces. This is accompanied with the observations of significant cracking of the external chromia scale and the intergranular internal oxides within the area of maximum stress. Preferential cracking of oxides may lead to early crack initiation and consequently a reduction in total fatigue life.