| 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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Redjaïmia, Abdelkrim
Institut de Mathématiques de Marseille
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2024Kinetics and mechanism of austenite decomposition in carbonitrided low-alloy steel
- 2024Morphological and Dimensional Evolution of Nanosized Amorphous Silicon Nitride in α-Fe: Diffusional and Elastic Effects
- 2023The analysis of internal stresses on a welded joint in Grade 91 steel under creep test loading: Synchrotron X-ray diffraction measurements and modellingcitations
- 2023TiTaNiVAl, Design of A Light Weight Refractory High Entropy Alloy (LWR-HEA) For Industrial Applications ; TiTaNiVAl, Design d'un Nouvel Alliage à Forte Entropie de Mélange (LWR-HEA), léger et réfractaire, pour des applications industrielles
- 2022Structural and crystallographic characterization of grain boundaries coarse particles in an Al–Mg–Si alloy, using convergent beam electron diffractioncitations
- 2021Blue emission and twin structure of p-type copper iodide thin filmscitations
- 2021On the M23C6-Carbide in 2205 Duplex Stainless Steel: An Unexpected (M23C6/Austenite)—Eutectoid in the δ-Ferritic Matrixcitations
- 2020High-Temperature Deformation Behavior of 718Plus: Consideration of γ′ Effectscitations
- 2020Process related porosity and mechanical properties in selective laser melting of TA6V parts: a couple 3D X-ray tomography and theoretical analysis
- 2019Crystal structure, morphology and formation mechanism of a novel polymorph of lead dioxide, γ-PbO 2citations
- 2019Transmission of Plasticity Through Grain Boundaries in a Metastable Austenitic Stainless Steelcitations
- 2018Contribution of local analysis techniques for the characterization of iron and alloying elements in nitrides: consequences on the precipitation process in Fe–Si and Fe–Cr nitrided alloyscitations
- 2018Isothermal decomposition of carbon and nitrogen-enriched austenite in 23MnCrMo5 low-alloy steelcitations
- 2018Mechanism of porosity formation and influence on mechanical properties in selective laser melting of Ti-6Al-4V partscitations
- 2017Mechanism of Si3N4 precipitation in nitrided Fe-Si alloys: A novel example of particle-stimulated-nucleationcitations
- 2015Effect of microstructure on the thermal conductivity of nanostructured Mg2(Si,Sn) thermoelectric alloys: An experimental and modeling approachcitations
- 2015Competitive precipitation of amorphous and crystalline silicon nitride in ferrite: Interaction between structure, morphology, and stress relaxationcitations
- 2014The determination of the activation energy varying with the precipitated fraction of beta" metastable phase in an Al-Si-Mg alloy using non-isothermal dilatometrycitations
- 2014Precipitation of aluminum nitride in a high strength maraging steel with low nitrogen contentcitations
- 2014Tempering of a martensitic stainless steel: Investigation by in situ synchrotron X-ray diffractioncitations
- 2013Unexcepted low-temperature crystallization of amorphous silicon nitride into a-Si3N4 in a ferritic Fe--Si matrixcitations
- 2013Phase transformations and mechanical properties in heat treated superaustenitic stainless steelscitations
- 2013Distribution of carbon in martensite during quenching and tempering of dual phase steels and consequences for damage propertiescitations
- 2012Nitride precipitation in compositionally heterogeneous alloys : nucleation growth and coarsening during nitridingcitations
- 2012Investigation of a ferrite/silicon nitride composite concept aimed at automotive applicationscitations
- 2011Characterization of Precipitation Sequences in Superaustenitic Stainless Steelscitations
- 2011A Study of Dual Phase Steel Damage Evolution with Microstructure
- 2011Phase Transformations in the Al-Si Coating during the Austenitization Stepcitations
- 2003Identification and characterization of a novel Mn–N nitride formed in Fe–Mn–N alloycitations
Places of action
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article
Characterization of Precipitation Sequences in Superaustenitic Stainless Steels
Abstract
<jats:p>Superaustenitic stainless steels exhibit excellent corrosion resistance, at a wide variety of exposure temperatures, especially in chloride containing environments, coupled with desirable mechanical properties. Previous studies have shown that these steels are prone to precipitation of secondary phases, such as sigma phase (σ), chi phase (χ), Laves-phase, carbides, nitrides or secondary austenite, when exposed at elevated temperatures, directly affecting their mechanical properties and corrosion behaviour. A detailed study of the effect of isothermal ageing on the microstructure of S32654 (Fe-24Cr-21Ni-7Mo-0.5N-0.013C) and S31254 (Fe-20Cr-18Ni-6Mo-0.2N-0.012C) superaustenitic stainless steels was carried out. Samples were aged within the temperature range of 650<jats:sup>ο</jats:sup>C to 950<jats:sup>ο</jats:sup>C for times up to 3000 h. Following ageing, precipitation of secondary phases was clearly observed with precipitates varying in volume fraction, size, shape and spatial distribution. Several secondary phases were identified via transmission electron microscopy (TEM) and electron diffraction (ED). The orientation relationships between the austenitic matrix and the secondary phases were identified. Interaction and also phase transformation among different types of precipitates, such as between precipitates and the austenitic matrix were observed and an attempt of understanding these phase transformations was carried out.</jats:p>