| 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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Ilie, Sergiu
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Investigating the Origin of Non-Metallic Inclusions in Ti-Stabilized ULC Steels Using Different Tracing Techniquescitations
- 2023Different Approaches to Trace the Source of Non-Metallic Inclusions in Steel
- 2023Application of tracing techniques to determine the source of alumina inclusions in the clogging layer of Ti-stabilized ULC steels
- 2023Classification of peritectic steels by experimental methods, computational thermodynamics and plant data: An Overview
- 2023Impurities and tramp elements in steel: Thermodynamic aspects and the application to solidification processes
- 2023Comparison of tracing deoxidation products with rare earth elements in the industry and on a laboratory scale
- 2022High temperature thermodynamics of the Fe-C-Mn system; new experimental data for the Fe-C-10 and 20 wt.-% Mn system
- 2022Different Approaches to Trace the Source of Non-Metallic Inclusions in Steelcitations
- 2022A Near-Process 2D Heat-Transfer Model for Continuous Slab Casting of Steelcitations
- 2022Selected metallurgical models for computationally efficient prediction of quality-related issues in continuous slab casting of steel
- 2022Thermomechanical and Microstructural Analysis of the Influence of B- and Ti-Content on the Hot Ductility Behavior of Microalloyed Steelscitations
- 2021Investigations on hot tearing in a continuous slab caster: Numerical modelling combined with analysis of plant results
- 2020Utilization of Experimental Data as Boundary Conditions for the Solidification Model Tempsimu-3Dcitations
- 2019Investigation of water droplet impingement under conditions of the secondary cooling zone of a continuous caster
- 2019High precious phase diagrams – a roadmap for a successful casting processing
- 2016HT-LSCM - A valuable tool for surface microstructure investigations
- 2012Hot deformation behaviour of low alloyed steelcitations
- 2012Influence of Strain Rate on Hot Ductility of a V-Microalloyed Steel Slabcitations
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document
Investigations on hot tearing in a continuous slab caster: Numerical modelling combined with analysis of plant results
Abstract
Hot tears (HT) and hot tear segregations (HTS) are common defects obtained in continuously cast steel. Their formation is closely related to microsegregation phenomena in combination with mechanical stresses exerted on the solidifying strand shell. In the vast majority of cases, the formation of HT/HTS in the casting process plays a minor role for an adequate product quality. However, it is well known that segregated hot tears most likely transform into undesirable hardening structures during subsequent rolling and heat treatment. The inhomogeneity on microscopic scale may seriously affect the performance of high-quality steel grades. In another scenario, internally located hot tears may propagate to the surface in the steel sheet forming process. Possible consequences are an increased scrap rate or the total failure of the component in the final application.<br/>For a selected steel grade, case studies are presented by numerically investigate HT/HTS formation in a continuous slab caster. Therefore, a strain-based hot tearing criterion developed at the Chair of Ferrous Metallurgy (Montanuniversitaet Leoben) was implemented in an in-house solidification model; the software tool was programmed in a joint project together with voestalpine Stahl Linz GmbH. Within the simulation trials the influence of (i) increased content of strongly segregating elements (P, S), (ii) changes in the secondary cooling strategy, (iii) different casting machine configuration and (iv) the maintenance conditions (roll misalignment) on the hot tear formation tendency was systematically analyzed. The calculations were compared with macro etching samples and critical conditions in the casting machine were identified. Finally, hot tear formation in the casting process could be prevented by adjusting the secondary cooling practice according to numerical findings.<br/>