| Numéro |
J. Phys. IV France
Volume 134, August 2006
EURODYMAT 2006 - 8th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
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|---|---|---|
| Page(s) | 1029 - 1034 | |
| DOI | https://doi.org/10.1051/jp4:2006134157 | |
| Publié en ligne | 26 juillet 2006 | |
EURODYMAT 2006 - 8th International Conference on Mehanical and Physical Behaviour of Materials under Dynamic Loading
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 1029-1034
DOI: 10.1051/jp4:2006134157
Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos NM 87545, USA
Published online: 26 July 2006
© EDP Sciences 2006
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 1029-1034
DOI: 10.1051/jp4:2006134157
The influence of shock prestraining on the structure/property response of hafnium
E. Cerreta, G.T. Gray III and C.P. TrujilloMaterials Science and Technology Division, Los Alamos National Laboratory, Los Alamos NM 87545, USA
Published online: 26 July 2006
Abstract
Highly-textured, crystal-bar-purity hafnium has been shock
prestrained at 4.96 and 11 GPa, below the reported alpha to omega
phase transformation of 38 GPa. The specimens were “soft caught”
following shock prestraining to facilitate quantification of the
substructure and post shock constitutive behavior. The substructure
of the shocked materials was investigated using optical and
transmission electron microscopy. The preshocked Hf samples were
subsequently reloaded quasi-statically in compression. The
deformation behavior of the as-annealed hafnium under quasi-static
conditions is compared to its response following shock prestraining.
The reload response is correlated to differences in the defect
density due to shock loading.
© EDP Sciences 2006