| 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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Bleck, Wolfgang
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (45/45 displayed)
- 2023Laves Phase Precipitation Behavior in HiperFer (High Performance Ferritic) Steel with and without Boron Alloyingcitations
- 2023Influence of the Inherited Structure Induced by Al and Si Alloying on Microstructure Evolution and Mechanical Properties of 100Cr6 Steelscitations
- 2022Material oriented crash-box design. Combining structural and material design todoc_improve specific energy absorptioncitations
- 2022Alloying and Processing of Medium Manganese Steels for Forging Applicationscitations
- 2022Dynamic and Static Strain Aging in a High‐Manganese Steelcitations
- 2022Low carbon bainitic steel processed by ausforming : Heterogeneous microstructure and mechanical propertiescitations
- 2022Correlating the Microstructural Heterogeneity with Local Formability of Cold‐Rolled Dual‐Phase and Complex‐Phase Steels Through Hardness Gradientscitations
- 2021Mechanism-controlled thermomechanical treatment of high manganese steelscitations
- 2021Tempering and Intercritical Annealing of Air‐Hardening 4 wt% Medium Manganese Steelscitations
- 2020Impact of precipitates on the hydrogen embrittlement behavior of a V-alloyed medium-manganese austenitic stainless steelcitations
- 2020Phase boundary segregation-induced strengthening and discontinuous yielding in ultrafine-grained duplex medium-Mn steelscitations
- 2020Effect of ausforming on microstructure and hardness characteristics of bainitic steelcitations
- 2019Development of a Cr-Ni-V-N Medium Manganese Steel with Balanced Mechanical and Corrosion Propertiescitations
- 2019Influence of Microstructural Morphology on Hydrogen Embrittlement in a Medium-Mn Steel Fe-12Mn-3Al-0.05Ccitations
- 2018Experimental and numerical investigation of dual phase steels formability during laser-assisted hole-flangingcitations
- 2018On the Mn–C Short-Range Ordering in a High-Strength High-Ductility Steel: Small Angle Neutron Scattering and Ab Initio Investigationcitations
- 2018Strain Aging Behavior of an Austenitic High-Mn Steelcitations
- 2016Intermetallic Phases in New Steelscitations
- 2015Steel — Ab Initio: Quantum Mechanics Guided Design of New Fe-Based Materialscitations
- 2015Icme Towards Improved Understanding of Bainite in 100CR6citations
- 2015International High Manganese Steel Conference
- 2015κ-Phase Formation in Fe-Mn-Al-C Austenitic Steelscitations
- 2014Modeling the microstructure influence on fatigue life variability in structural steels
- 2014Optimal Control of a Cooling Line for Production of Hot Rolled Dual Phase Steelcitations
- 2014Control of Strain Hardening Behavior in High-Mn Austenitic Steelscitations
- 2014Bainitic forging steels for cyclic loadingcitations
- 2014In Situ High Energy X-Ray Diffraction for Investigating the Phase Transformation in Hot Rolled TRIP-Aided Steelscitations
- 2014On the Spheroidized Carbide Dissolution and Elemental Partitioning in High Carbon Bearing Steel 100Cr6citations
- 2013Optimal control of a cooling line for production of hot rolled dual phase steel
- 2012Phase-field modelling of microstructure evolution during processing of cold-rolled dual phase steels
- 2011Phase-Field Simulations of Bainitic Phase Transformation in 100CR6
- 2011Atomic analysis on bainitic reaction in high-carbon steel 100Cr6
- 2011Atomic analysis on bainitic reaction in high carbon steel 100Cr6
- 2010Numerical cooling strategy design for hot rolled dual phase steelcitations
- 2009Microstructure based failure analysis of multiphase steels using damage mechanics modeling
- 2009Derivation and variation in composition-dependent stacking fault energy maps based on subregular solution model in high-manganese steels
- 2009Comparison of damage development depending on the local microstructure in low alloyed Al-TRIP-Steels, IF steel and a DP steel
- 2009Object based quantitative analysis of complex multiphase microstructures in steel
- 2009Failure modeling of multiphase steels using representative volume elements based on real microstructurescitations
- 2009Stretch-flangeability characterisation of multiphase steel using a microstructure based failure modelling
- 2008Crack development in dependence of the local microstructure in Al-Trip steels
- 2008Delayed cracking in meta-stable austenitic stainless steels and its prediction by FEM simulation : pres. at Symposium New Methods in Steel Design, MSE 2008, Nürnberg
- 2006Experimental observations on thecorrelation between microstructure andfracture of multiphase steelscitations
- 2006Influence of experimental parameters on properties and microstructure of the steel X210CrW12 in the semi-solid statecitations
- 2003Simulation of proeutectoid ferrite precipitation during technical heat treatment
Places of action
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article
Low carbon bainitic steel processed by ausforming : Heterogeneous microstructure and mechanical properties
Abstract
<p>Thermodynamic stability of austenite is a primary factor affecting mechanical properties of low-carbon bainitic steels. In this work, ausforming was applied to a low-carbon steel, in which additional dislocations and defects were induced in austenite prior to isothermal transformation of bainite at a relatively low temperature. Hence, the stability of the retained austenite was improved, and the formation of fresh martensite during the secondary stage of cooling was suppressed. Results of microstructure characterizations by electron backscatter diffraction (EBSD), X-ray diffraction (XRD), and dilatometry were examined. The correlations between the process parameters and developed heterogeneous microstructures were established. It was found that the volume fraction of retained austenite was greatly promoted along with the reductions of fresh martensite and bainitic ferrite. Tensile properties of the bainitic steel were enhanced due to the occurred heterogeneous microstructure and fair balance of its phase constituents. The significantly increased strengths were mainly attributed to microstructure refinement as well as the enrichment of geometrically necessary dislocations (GNDs) within the bainitic ferrite and retained austenite. Furthermore, a large fraction of retained austenite showed a significant impact on the enhancement of both uniform elongation and strength, benefitting from the transformation-induced plasticity (TRIP) effect. The presence of microcracks and tiny dimples with thick tearing edges in the vicinity of the inclusions in the fractographs were directly related to the refined microstructure, which certainly provided a remarkable ability to reduce the formation of macro/micro-cracks and prolong the post-necking.</p>