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Título: | Retained austenite thermal stability in a nanostructured bainitic steel |
Autor: | Avishan, B.; García Mateo, Carlos CSIC ORCID CVN ; Yazdani, Sasan; García Caballero, Francisca CSIC ORCID | Palabras clave: | Nanostructured bainite thermal stability Scanning electron microscopy transmission electron microscopy X-ray diffraction |
Fecha de publicación: | 2013 | Editor: | Elsevier | Citación: | Materials Characterization 81 (7) : 105-110 (2013) | Resumen: | The unique microstructure of nanostructured bainite consists of very slender bainitic ferrite plates and high carbon retained austenite films. As a consequence, the reported properties are opening a wide range of different commercial uses. However, bainitic transformation follows the T0 criteria, i. e. the incomplete reaction phenomena, which means that the microstructure is not thermodynamically stable because the bainitic transformation stops well before austenite reaches an equilibrium carbon level. This article aims to study the different microstructural changes taking place when nanostructured bainite is destabilized by austempering for times well in excess of that strictly necessary to end the transformation. Results indicate that while bainitic ferrite seems unaware of the extended heat treatment, retained austenite exhibits a more receptive behavior to it | Versión del editor: | http://dx.doi.org/10.1016/j.matchar.2013.04.015 | URI: | http://hdl.handle.net/10261/77878 | DOI: | 10.1016/j.matchar.2013.04.015 | ISSN: | 1044-5803 |
Aparece en las colecciones: | (CENIM) Artículos |
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198_M&C_Avishad.pdf | 1,66 MB | Adobe PDF | Visualizar/Abrir |
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