English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/3188
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título : The Role of Retained Austenite on Tensile Properties of Steels with Bainitic Microstructures
Autor : García Mateo, Carlos; García Caballero, Francisca
Palabras clave : Strength
Retained austenite
Mechanical stability
Bainite
Chemical composition
Morphology
Ductility
Fecha de publicación : 2005
Editor: Japan Institute of Metals
Citación : Materials Transactions, Vol.46 No.08 (2005) pp.1839-1846
Resumen: In high-carbon, silicon-rich steels it is possible to obtain a very fine bainitic microstructure by transformation at low temperatures (200--300°C). This microstructure consists of slender ferrite plates, with thicknesses of several tens of nm, in a matrix of retained austenite. Whereas strength is mainly provided by to the fine scale of the ferrite plates (stronger phase), ductility is mostly controlled by the retained austenite (softer phase). Further improvement in ductility is achieved by strain induced transformation of austenite to martensite, the so called TRIP effect. In order to take full advantage of this effect, the mechanical stability of the austenite, i.e., its capability to transform to martensite under strain, must not be too low nor excessively high. Two main aspects of the mechanical stability of the retained austenite, morphology and chemical composition, have been studied to determine the role that these play on the ductility behaviour of the bainitic steels studied. It is suggested that the chemical composition has the strongest effect on the ductility of these new high strength alloys.
Versión del editor: http://biz3.bioweb.ne.jp/jim/journal/e/46/08/1839.html
URI : http://hdl.handle.net/10261/3188
Aparece en las colecciones: (CENIM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Mat_Trans_JIM_2005_46_1839.pdf432,91 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.