Ductile-brittle transition behavior of tungsten under shock loading
Conference
·
OSTI ID:10143047
- Lawrence Livermore National Lab., CA (United States)
- Los Alamos National Lab., NM (United States)
The ductile-brittle transition behavior of warm-forged tungsten under shock loading conditions was examined by performing shock/soft-recovery experiments at 22C and 400C. The results of a recovery experiment at 22C indicate that shock (19 GPa)-induced strains were accommodated by fracture processes, i.e. there were no indications of shock-induced plastic deformation, and the test sample was reduced to rubble. At 400C the test sample was recovered intact and the shock-induced plasticity caused deformation banding and an increase in the dislocation density of the material. The results of these experiments demonstrate the principle of a ductile-brittle transition behavior of tungsten under uniaxial shock loading conditions and indicate that explosively driven deformation of the material studied will likely result in pulverization due to shock loading.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 10143047
- Report Number(s):
- UCRL-JC--116339; CONF-940956--7; ON: DE94009913
- Country of Publication:
- United States
- Language:
- English
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