| 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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Altamirano-Guerrero, Gerardo
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2021Optimal Design of Hot-Dip Galvanized DP Steels via Artificial Neural Networks and Multi-Objective Genetic Optimizationcitations
- 2019Microstructural Characterization of the Laser Welding in a Nickel Based Superalloycitations
- 2019Effect of Retained Austenite and Non-Metallic Inclusions on the Mechanical Properties of Resistance Spot Welding Nuggets of Low-Alloy TRIP Steelscitations
- 2019Study of Static Recrystallization Kinetics and the Evolution of Austenite Grain Size by Dynamic Recrystallization Refinement of an Eutectoid Steelcitations
- 2019Optimization of the Continuous Galvanizing Heat Treatment Process in Ultra-High Strength Dual Phase Steels Using a Multivariate Modelcitations
- 2018Experimental Determination of Continuous Cooling Transformation (CCT) Diagrams for Dual-Phase Steels from the Intercritical Temperature Rangecitations
- 2016Experimental Determination of Continuous Cooling Transformation Diagrams of Hot-Rolled Heat Treatable Steel Plates Using Quenching Dilatometrycitations
- 2015Influence of Boron on the Precipitation Kinetics in Advanced Ultra-High Strength Steelscitations
- 2012Effect of boron on the continuous cooling transformation kinetics in a low carbon advanced ultra-high strength steel (A-UHSS)citations
- 2012Dynamically recrystallized austenitic grain in a low carbon advanced ultra-high strength steel (A-UHSS) microalloyed with boron under hot deformation conditionscitations
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article
Dynamically recrystallized austenitic grain in a low carbon advanced ultra-high strength steel (A-UHSS) microalloyed with boron under hot deformation conditions
Abstract
<jats:title>ABSTRACT</jats:title><jats:p>This research work studies the dynamically recrystallized austenitic grain size (<jats:italic>D</jats:italic><jats:sub>rec</jats:sub>) in a new family of low carbon NiCrCuV advanced ultra-high strength steel (A-UHSS) microalloyed with boron under hot deformation conditions. For this purpose, uniaxial hot-compression tests are carried out in a low carbon A-UHSS microalloyed with different amounts of boron (14, 33, 82, 126 and 214 ppm) over a wide range of temperatures (950, 1000, 1050 and 1100°C) and constant true strain rates (10<jats:sup>−3</jats:sup>, 10<jats:sup>−2</jats:sup> and 10<jats:sup>−1</jats:sup> s<jats:sup>−1</jats:sup>). Deformed samples are prepared and chemically etched with a saturated aqueous picric acid solution at 80°C in order to reveal the <jats:italic>D</jats:italic><jats:sub>rec</jats:sub> and examined by light optical (LOM) and scanning electron microscopy (SEM). The <jats:italic>D</jats:italic><jats:sub>rec</jats:sub> is related to the Zener-Hollomon parameter (<jats:italic>Z</jats:italic>), and thereafter the <jats:italic>D</jats:italic><jats:sub>rec</jats:sub> divided by Burger's vector (<jats:italic>b</jats:italic>) is related to the steady state stress (<jats:italic>σ</jats:italic><jats:sub>ss</jats:sub>) divided by the shear modulus (<jats:italic>µ</jats:italic>) (Derby model). Results shown that the <jats:italic>D</jats:italic><jats:sub>rec</jats:sub> in the current steels is fine (≈ 23 μm) and almost equiaxed, and the recrystallized grain size-flow stress relationship observed after of plastic deformation is consistent with the general formulation proposed by Derby. It is corroborated that boron additions to the current A-UHSS do not have meaningful influence on the <jats:italic>D</jats:italic><jats:sub>rec</jats:sub>.</jats:p>