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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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Joyce, M. R.
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Topics
Publications (8/8 displayed)
- 2016Assessment of mixed mode loading on macroscopic fatigue crack paths in thick section Al-Cu-Li alloy platecitations
- 2004The effect of environment and orientation on fatigue crack growth behaviour of CMSX-4 nickel base single crystal at 650 °Ccitations
- 2004Fatigue crack initiation and early growth in a multiphase Al alloy included in a multilayer material systemcitations
- 2004Quantitative assessment of preferential fatigue initiation sites in a multi-phase aluminium alloycitations
- 2003Microstructural characterisation of fatigue crack initiation in Al-based plain bearing alloyscitations
- 2003Elevated temperature short crack fatigue behaviour in near eutectic Al-Si alloyscitations
- 2002Elevated temperature fatigue of Al-Si piston alloys
- 2000Microstructural influences on fatigue crack initiation and early growth behaviour in plain bearing Al-based linings
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document
Elevated temperature fatigue of Al-Si piston alloys
Abstract
Long crack fatigue tests were carried out on two cast Al-Si alloys used in the manufacture of pistons for small automotive engines. These were performed at a frequency of 15Hz at room temperature, 200 degreesC and 350 degreesC, in addition further tests were performed at 50Hz at the highest temperature. The fatigue performance of both alloys was found to improve with increasing temperature. This was linked to a change in fatigue crack propagation mechanism in both alloys with respect to the primary Si phase. It was seen that the transition between a given Si phase decohering or fracturing ahead of a fatigue crack occurred at a temperature and strain rate dependent critical stress intensity factor. The relation between critical stress intensity factor, temperature and strain rate differentiated the two materials studied.