Effect of the austenitizing temperature on the kinetics of ferritic grain growth under continuous cooling of a Nb microalloyed steel

The continuous cooling kinetics of the nucleation and growth of the ferritic phase was studied on a Nb microalloyed steel. Johnson–Mehl–Avrami equations were found for three austenitizing conditions and a direct relation between the time exponent and the transformation time was revealed.

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Bibliographic Details
Published in:Scripta materialia 2004-10, Vol.51 (7), p.721-725
Main Authors: Cota, A.B., Lacerda, C.A.M., Oliveira, F.L.G., Machado, F.A., Silva Araújo, da
Format: Article
Language:English
Subjects:
Applied sciences
Austenitizing
Exact sciences and technology
Ferritic grain growth kinetics
Metals. Metallurgy
Nb microalloyed steels
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Description
Summary:The continuous cooling kinetics of the nucleation and growth of the ferritic phase was studied on a Nb microalloyed steel. Johnson–Mehl–Avrami equations were found for three austenitizing conditions and a direct relation between the time exponent and the transformation time was revealed.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2004.05.044