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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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Li, Zushu
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Effect of residual elements during the hot-working process of steel production : a critical reviewcitations
- 2023HIsarna process simulation model : using FactSage with macro facilitycitations
- 2023HIsarna Process Simulation Model: Using FactSage with Macro Facilitycitations
- 2021Devolatilisation characteristics of coal and biomass with respect to temperature and heating rate for HIsarna alternative ironmaking processcitations
- 2021Devolatilisation characteristics of coal and biomass with respect to temperature and heating rate for HIsarna alternative ironmaking processcitations
- 2021Observation of the reactions between iron ore and metallurgical fluxes for the alternative ironmaking HIsarna processcitations
- 2020Machine learning-based prediction of a BOS reactor performance from operating parameterscitations
- 2020Correlative analysis of interaction between recrystallization and precipitation during sub-critical annealing of cold-rolled low-carbon V and Ti–V bearing microalloyed steelscitations
- 2020Hidden Phenomena During Transient Reaction Trajectories in Liquid Metals Processingcitations
- 2019Comparison of formability and microstructural evolution of C106 copper and 316L stainless steelcitations
- 2018Dynamic model of basic oxygen steelmaking process based on multi-zone reaction kinetics : model derivation and validationcitations
- 2018Quasi in-situ analysis of geometrically necessary dislocation density in α-fibre and γ-fibre during static recrystallization in cold-rolled low-carbon Ti-V bearing microalloyed steelcitations
- 2018Dynamic model of basic oxygen steelmaking process based on multi-zone reaction kinetics : modelling of manganese removalcitations
- 2018Dynamic model of basic oxygen steelmaking process based on multi-zone reaction kinetics : modelling of decarburisationcitations
- 2017Study of low flow rate ladle bottom gas stirring using triaxial vibration signalscitations
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article
Quasi in-situ analysis of geometrically necessary dislocation density in α-fibre and γ-fibre during static recrystallization in cold-rolled low-carbon Ti-V bearing microalloyed steel
Abstract
In the present study, cold-rolled low-carbon steel is annealed at three different conditions: 700 oC for 0 s, 800 oC for 0 s and 800 oC for 2 min at the heating rate of ~10 oC/s. Recrystallization behaviour on sample surface is studied using a heated stage Scanning Electron Microscopy and Electron Backscattered Diffraction. For the lower annealing temperature of 700 oC with no dwell, almost no recrystallization is observed and microstructure resembles the as-received deformed material with the exception of occasional sub-micron sized nuclei. For the annealing conditions of 800 oC 0 s and 800 oC 2 min, onset and evolution of recrystallization is observed in-situ as a function of the initial as-cold rolled texture. Slower recovery rate of alpha fibre than gamma fibre is observed and confirmed by lower drop in average geometrically necessary dislocation (GND) density for un-recrystallized alpha fibres (1.1E+14 m-2 for 700 oC 0 s , 1.4E+14 m-2 for 800 oC 0 s and 4.5E+14 m-2 for 800 oC 2 min) than for un-recrystallized gamma fibre grains (3.0E+14 m-2 for 700 oC 0 s , 6.2E+14 m-2 for 800 oC 0 s and 9.8E+14 m-2 for 800 oC 2 min) during annealing. Strong gamma texture in recrystallized matrix is found for annealing conditions of 800 oC 0 s and 800 oC 2 min. From TEM characterisation it was shown that sub-grain boundaries are decorated with fine precipitates (diameter d < 15 nm) of titanium-vanadium carbides (Ti,V)C for the annealing condition of 700 oC 0 s, which suggests that these precipitates play a major overall role in retardation of the recrystallization kinetics.