Dynamic recrystallization mechanisms of an Fe-8% Al low density steel under hot rolling conditions

SCRIPTA MATERIALIA

卷:68

Article

Castan, C.¹  Montheillet, F.²  Perlade, A.³ 

[1] ArcelorMittal, R&D Packaging, F-57283 Maizieres Les Metz, France

[2] Ecole Mines, Ctr SMS, CNRS UMR 5146, F-42023 St Etienne 2, France

[3] ArcelorMittal, R&D Automot Prod, F-57283 Maizieres Les Metz, France

关键词: Ferritic steels;    High-temperature deformation;    Dynamic recrystallization;    Recrystallized microstructure;    Recrystallization texture;   

DOI  :  10.1016/j.scriptamat.2012.07.037

来源: Elsevier

【 摘 要 】

Iron-aluminium alloys display promising physical and mechanical properties. In this study, the effects of strain, strain rate and temperature on an Fe-8% Al were investigated. Hot torsion tests were performed in the temperature range 900-1100 degrees C and strain rate range 0.1-10 s(-1). In this alloy, two types of dynamic recrystallization may operate during hot deformation: at high temperature and high strain rate, this alloy undergoes discontinuous dynamic recrystallization, whereas at lower temperature and strain rate, continuous dynamic recrystallization occurs. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free