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Institut de Chimie de la Matière Condensée de Bordeaux |  |
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Institut de Chimie de la Matière Condensée de Bordeaux | |
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| HAL : hal-00683481, version 1 |
| DOI : 10.1016/j.msea.2012.02.024 |
| Fiche détaillée |  Récupérer au format |
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| Materials Science and Engineering: A 542 (2012) 31-39 |
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| Evolution of microstructure and mechanical properties of medium Mn steels during double annealing |
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| Artem Arlazarov 1, 2Mohamed Gouné 1, 3 |
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| (2012) |
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| A double annealing process was applied to cold rolled medium Mn steel. The evolution of both microstructure and mechanical properties during the second annealing were analysed. Austenite reverted transformation (ART) was observed during intercritical annealing. It was shown that a complex ultra-fine microstructure composed of three phases (retained austenite/martensite/ferrite) was formed and two types of morphologies were detected (lath-like and polygonal). Furthermore, a high volume fraction of retained austenite (22%), which was stabilized at room temperature, was the origin of a TRIP effect. A good balance between strength and ductility can be achieved by optimizing the heat treatment. The various results are discussed and some mechanisms are proposed to explain the observations. |
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| 1 : | ArcelorMittal Research SA |
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ARCELORMITTAL |
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| 2 : | Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3) |
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CNRS : UMR7239 – Arts et Métiers ParisTech – Ecole Nationale d'Ingénieurs de Metz – Université Henri Poincaré - Nancy I – Université de Lorraine |
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| 3 : | Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) |
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CNRS : UPR9048 – Université de Bordeaux – Ecole Nationale Supérieure de Chimie, de Biologie et de Physique |
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| 4 : | Centre des Matériaux (MAT) |
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CNRS : UMR7633 – MINES ParisTech - École nationale supérieure des mines de Paris |
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| Domaine | : | Chimie/Matériaux |
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| Medium Mn steel – Retained austenite – Martensite recrystallization – Phase transformation – Transformation induced plasticity (TRIP) |
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| hal-00683481, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00683481 | |
| oai:hal.archives-ouvertes.fr:hal-00683481 | |
| Contributeur : Stéphane Toulin | |
| Soumis le : Mercredi 28 Mars 2012, 19:20:48 | |
| Dernière modification le : Vendredi 30 Mars 2012, 10:48:01 | |
