Issue
DYMAT 2009
Volume 2, 2009
DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
Page(s) 1069 - 1074
Section Micro-Structural Effects
DOI https://doi.org/10.1051/dymat/2009149
Published online 15 September 2009
DYMAT 2009 (2009) 1069-1074
DOI: 10.1051/dymat/2009149

Strain rate and temperature effects on stress-strain behaviour of cast high alloyed CrMnNi-steel

L. Krüger1, S. Wolf1, U. Martin2, P. Scheller3, A. Jahn3 and A. Weiß3

1  Institute of Materials Engineering, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany
2  Institute of Materials Science, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany
3  Institute of Iron and Steel Technology, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany


Published online: 15 September 2009

Abstract
Cast high alloyed metastable austenitic CrMnNi-TRIP-steels are rather novel corrosion resistant materials and still under development. Due to the transformation-induced plasticity effect (TRIP) high stresses combined with high ductility can be achieved up to high strain rates of 103 1/s. Deformation temperatures and strain rate influence the martensitic phase transformation rate during plastic deformation and have a strong effect on achieved strength and failure properties. Despite the cast coarse grained microstructure, a high energy consumption up to crash relevant strain rates is reached due to the pronounced TRIP-effect.



© EDP Sciences 2009