Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-27T08:09:20.888Z Has data issue: false hasContentIssue false
  • English
  • Français

Ultra High Strength FeMn TWIP Steels for automotive safety parts

Published online by Cambridge University Press:  09 February 2006

D. Cornette ,
P. Cugy ,
A. Hildenbrand ,
M. Bouzekri  and
G. Lovato (Arcelor)
Get access

Abstract

Energy savings are among the most important goals of steel users. But generally, the increase of Tensile Strength for a given metallurgy isobtained to the detriment of ductility. Arcelor develops new ultra high strength steel with TWinning Induced Plasticity (TWIP) effect for weightreduction and impact resistance. This product, based on manganese (Mn) alloying metallurgy, has a tensile stress higher than 1000 MPa fora total elongation superior to 50%. Properties of these new steel grades are reported, in terms of tensile and forming behaviour, weldabilityand fatigue.
Crash resistance is investigated by using a dynamic axial compression test and a dynamic three point bending test on structural componentswith closed and open cross sections. Optimised designs are presented for safety parts in FeMn TWIP 1000 and assessed againstconventional UHS steel. For each steel grade, the weight saving potential is estimated with respect to parts manufactured in high drawingability steel.


Type
Research Article
Information
Metallurgical Research & Technology , Volume 102 , Issue 12: L'acier en France en 2004Coulée continueUtilisation de l'acierEnvironnementMaintenance , December 2005 , pp. 905 - 918
Copyright
© La Revue de Métallurgie, 2005

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)