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Título: | Bainitic ferrite plate thickness evolution in two nanostructured steels |
Autor: | Ruiz-Jimenez, Victor; Jiménez, José Antonio CSIC ORCID ; García Caballero, Francisca CSIC ORCID ; García Mateo, Carlos CSIC ORCID CVN | Palabras clave: | Bainite Transformation kinetics Retained austenite Plate thickness |
Fecha de publicación: | 2021 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | Materials 14 (5): 4347 (2021) | Resumen: | Bainitic ferrite plate thickness evolution during isothermal transformation was followed at the same holding temperatures in two nanostructured steels containing (in wt.%) 1C‐2Si and 0.4C‐ 3Si. A dynamic picture of how the bainitic transformation evolves was obtained from the character-ization of the microstructure present at room temperature after full and partial transformation at 300 and 350 °C. The continuous change during transformation of relevant parameters influencing the final scale of the microstructure, YS of austenite, driving force of the transformation and evolution of the transformation rate has been tracked, and these variations have been correlated to the evolution of the bainitic ferrite plate. Instead of the expected refinement of the plate predicted by existing theory and models, this study revealed a thickening of the bainitic ferrite plate thickness as the transformation progresses, which is partially explained by changes in the transformation rate through the whole decomposition of austenite into bainitic ferrite. | Versión del editor: | https://doi.org/10.3390/ma14154347 | URI: | http://hdl.handle.net/10261/257784 | DOI: | 10.3390/ma14154347 | Identificadores: | doi: 10.3390/ma14154347 issn: 1996-1944 |
Aparece en las colecciones: | (CENIM) Artículos |
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