| 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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Bouquerel, Jeremie
École Nationale Supérieure de Chimie de Lille
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2023Compelling Evidence for the Role of Retained Austenite in the Formation of Low Cycle Fatigue Extrusions in a 9Ni Steel
- 2021Impact of a heat treatment on the microstructure and the low cycle fatigue properties of a 9Ni steel
- 2021Impact of a heat treatment on the microstructure and the low cycle fatigue properties of a 9Ni steel
- 2021Study of the effect of the heat treatment parameters on the pearlitic transformation of an eutectoid steel wire
- 2021Study of the effect of the heat treatment parameters on the pearlitic transformation of an eutectoid steel wire
- 2021Retained austenite-aided cyclic plasticity of the quenched 9Ni steelcitations
- 2021Experimental mesoscopic investigation of the local cyclic plasticity of a non-oriented electrical steelcitations
- 2020Stability of fatigue cracks at 350 °C in air and in liquid metal in T91 martensitic steelcitations
- 2020Relations between microstructure and hardness of plain carbon steels using eddy current technique
- 2019Investigation of the Microstructure and Properties of TRIP 800 Steel Subjected to Low-Cycle Fatiguescitations
- 2019Influence of steel cleanliness on drawability of fine filaments with high tensile strengthcitations
- 2018Advanced processing of EBSD data to distinguish the complex microstructure evolution of a Cu-Ni-Si alloy induced by fatiguecitations
- 2018Behaviour of short and long cracks in air and in liquid metal in T91 steelcitations
- 2018Behaviour of short and long cracks in air and in liquid metal in T91 steelcitations
- 2018Cyclic Strain Localization Assessment by Advanced Microscopies
- 2015The electron microanalyzer (EPMA): a powerful device for the microanalysis of filled polymeric materialscitations
- 2013Effect of the forming process on the microstructure of aluminium parts for collective transports
- 2011Effect of heat treatment on liquid sodium embrittlement of T91 martensitic steelcitations
- 2008SIMULATION OF THE STATIC MECHANICAL BEHAVIOUR OF TRIP STEELS BY MICRO-MECHANICAL MODELLING
Places of action
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article
Compelling Evidence for the Role of Retained Austenite in the Formation of Low Cycle Fatigue Extrusions in a 9Ni Steel
Abstract
The 9Ni martensitic steels have a martensitic microstructure which contains retained austenite after solution heat treatment and water quenching. Under low cycle fatigue, extrusions formed at the surface of the material and were very close to martensite lath boundaries. The presence of retained austenite at martensite laths has been highly suspected to impact the cyclic plasticity. However, the nano-size of the austenitic phase makes it difficult to obtain clear evidence of its role. The paper focuses on the precise determination of these extrusions and the link with the retained austenite. The paper also emphasizes the innovative and promising use of magnetic force microscopy (MFM) to document cyclic plasticity of a 9Ni steel. It is shown that electron microscopies, even the most advanced ones, may be unsuccessful in reaching this goal, while magnetic force microscopy (MFM) overcame the difficulty. This technique has allowed imaging of both the extrusion and the retained austenite. These analyses confirm that the fatigue extrusions originated from a local displacement of martensite lath. The proposed mechanism, in which the retained austenitic film acts as a lubricant film or greasy film promoting a flowing of martensite along the interfaces, is unambiguously demonstrated.