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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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Ville, Fabrice
Institut National des Sciences Appliquées de Lyon
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2017Rolling contact fatigue crack propagation in nitrided alloyed steelscitations
- 2015Hybrid Rolling Element Bearings: a New Answer Facing the Problem of Debris Entrapment
- 2015Influence of grain boundary cementite induced by gas nitriding on the rolling contact fatigue of alloyed steels for gearscitations
- 2015Analysis of Particle Entrapment in Hybrid Lubricated Bearings
- 2014Boundary lubrication: Influence of the size and structure of inorganic fullerene-like MoS2 nanoparticles on friction and wear reduction
- 2014Boundary lubrication: Influence of the size and structure of inorganic fullerene-like MoS2 nanoparticles on friction and wear reductioncitations
- 2014Numerical Simulation of Particle Entrapment in Hybrid Lubricated Bearings
- 2010Effect of lubricant contamination on friction and wear in an EHL sliding contact
Places of action
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article
Rolling contact fatigue crack propagation in nitrided alloyed steels
Abstract
International audience ; Experimental investigations were carried out to better understand the rolling contact fatigue mechanisms in nitrided layers of the 33CrMoV12-9 steel grade. Surface-initiated pitting failure mode was reproduced on a twin-disc machine to analyse crack growth and compressive residual stress behaviour within the nitrided layers. Metallographic examinations, 3D observations by means of high-resolution X-ray computed tomography and residual stress analysis were realised on nitrided 33CrMoV12-9 specimens before and after rolling contact fatigue tests. The study revealed that if the initial compressive residual stresses associated with the surface treatment are released during the process of rolling contact fatigue, pre-existing superficial cracks propagate in the nitrided layers along the intergranular carbides. These precipitates induced by the nitriding process therefore act as preferential crack propagation sites.