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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/17759
Título

Influence of V Precipitates on Acicular Ferrite Transformation. Part 1: The Role of Nitrogen

AutorGarcía Mateo, Carlos; Capdevila, Carlos; García Caballero, Francisca; García de Andrés, Carlos
Palabras claveAcicular ferrite
Bainite
V(C, N)
Continuous cooling transformation diagrams
Fecha de publicaciónsep-2008
EditorIron and Steel Institute of Japan
CitaciónISIJ International 48(9): 1270-1275 (2008)
ResumenThis paper (part 1 of a two part study) deals with the influence of N in its combination with V, as V(C, N) precipitates, on the decomposition of austenite into acicular ferrite. Likewise, the intragranular nucleation potency of V(C, N) precipitates is analyzed through the continuous cooling transformation diagrams (CCT) of two C–Mn–V steels with different contents of N under two different austenitising temperatures, i.e. different austenite grain sizes. The results clearly show that for austenite to decompose into acicular ferrite is necessary, first to have a representative fraction of V(C, N) precipitates within austenite, and second to decorate the austenite grain boundaries with proeutectoid ferrite so bainite can not form. Part 2 of the study concerns with the influence that those precipitates have on the kinetics of acicular ferrite formation during austenite isothermal decomposition.
Descripción6 pages, 8 figures, 1 table.-- This is Part I of paper "Influence of V Precipitates on Acicular Ferrite Transformation", Part II available at: http://hdl.handle.net/10261/17758
Vanadium Award 2009-Council of the Institute of Materials, Minerals and Mining-UK for the most outstanding paper in the metallurgy and technology of vanadium and its alloys. Sponsored and selected by the Vanadium International Technical Committee (Vanitec).
Versión del editorhttp://dx.doi.org/10.2355/isijinternational.48.1270
URIhttp://hdl.handle.net/10261/17759
DOI10.2355/isijinternational.48.1270
ISSN0915-1559 (Print)
1347-5460 (Online)
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