Numéro |
J. Phys. IV France
Volume 110, September 2003
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|
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Page(s) | 869 - 874 | |
DOI | https://doi.org/10.1051/jp4:20020803 |
J. Phys. IV France 110 (2003) 869
DOI: 10.1051/jp4:20020803
Effect of shock wave hardening and cold working on mechanical properties of a new high nitrogen steel
E. Lach, A. Lichtenberger and F. RondotISL, French-German Research Institute of Saint-Louis, BP. 34, 68301 Saint-Louis cedex, France
Abstract
Nitrogen alloyed austenitic steels are rather novel alloys and are still under development. They can suffer a very high deformation
without the austenite becoming unstable. A very high strength can be achieved by work-hardening due to this property. In recently
developed alloys, Mn-contents are reduced to about 12% with a nitrogen content of about 1%. Then aim of this work is to investigate
a newly developed high nitrogen steel called PANACEA. Both shock wave hardening and cold rolling were used to work-harden
the alloy. The plates were shock loaded up to 600 kbar at shock wave duration from 0.5
s to 4
s and cold rolled with a reduction of 80%. Quasi-static and dynamic compression (SHPB) tests were performed to determine the
mechanical behaviour prior and after work hardening. The microstructure was studied by optical and scanning electron microscopy.
© EDP Sciences 2003