| Issue |
Metall. Res. Technol.
Volume 111, Number 1, 2014
|
|
|---|---|---|
| Page(s) | 3 - 8 | |
| DOI | https://doi.org/10.1051/metal/2014004 | |
| Published online | 14 February 2014 | |
Austenite formation in a ferrite/martensite cold-rolled microstructure during annealing of advanced high-strength steels
1 ArcelorMittal Research SA, Voie
Romaine, BP 30320, 57283
Maizieres-lès-Metz,
France
e-mail: clement.philippot@gmail.com
2 Aix-Marseille Université, UTLN, CNRS,
IM2NP UMR 7334 Aix-Marseille University, Av. Escadrille Normandie Niemen, case 142,
13397
Marseille Cedex 20,
France
Received:
16
September
2013
Accepted:
22
January
2014
From a ferrite/martensite cold-rolled microstructure, the interaction between ferrite recrystallization and austenite formation is investigated. It is observed that a slow heating rate promotes the ferrite recrystallization and a homogeneous microstructure, whereas a fast heating rate delays the recrystallization and leads to heterogeneously distributed austenite islands.
Key words: austenite formation / ferrite recrystallization / heating rate / heterogeneity / dual-phase steel
© EDP Sciences 2014
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