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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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Cherouat, A.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2006Residual stress analysis in crankshaft using the hole drilling method
- 2005Determination of the residual stresses in composite laminate using the compliance method
- 2004Residual stresses in coating technology
- 2002Development of the high-precision incremental-step hole-drilling method for the study of residual stress in multi-layer materialscitations
- 2001Incremental hole drilling and X-ray diffraction techniques to the residual stresses determination introduced by shot peening in titanium alloycitations
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article
Development of the high-precision incremental-step hole-drilling method for the study of residual stress in multi-layer materials
Abstract
The aim of this study was to determine internal stress locked in a zirconia ZrO<sub>2</sub>-Y<sub>2</sub>O<sub>3</sub> 8 wt.% coating and substrate produced by plasma spray. Zirconia layers are suitable for thermal barrier coatings due to their high thermal isolation. We varied the spraying temperature and the type of substrate in order to show the technological conditions that play an important role in determining coating quality. The deposit studied consisted of partially stabilised zirconia used in the aircraft industry as a thermal barrier in combustion chambers. The high-precision incremental-step hole-drilling method was used to determine the residual stress introduced into nine samples. We obtained the residual stress gradient in the test specimen. Compressive residual stress has a beneficial effect on fatigue life, crack propagation, material lifetime and coating adhesion. The stress was measured in zirconia coatings deposited on stainless steel, aluminum and cast iron substrates at spraying temperatures of 85, 150 and 210 °C. © 2002 Elsevier Science B.V. All rights reserved.