Specimen geometries and gauge placements. (a) Free surface velocity and (b) lateral stress.
EBSD micrographs of tantalum and corresponding pole figures. (a) As received tantalum (rolling direction), (b)50% cold-rolled tantalum (through thickness direction), (c) pole figure (001) of as-received tantalum, and (d) pole figure (001) of rolled tantalum.
Transmission electron micrographs of tantalum. (a) As-received and (b) cold-rolled.
Free surface velocity trace from 6 mm thick, as-received tantalum. The flyer was 3 mm thick, impacting at 209 m s−1.
Hugoniot of tantalum. (a) Shock velocity—particle velocity and (b) pressure—particle velocity.
Free surface velocity traces. (a)As-received and (b) cold-rolled.
Spall strength versus specimen thickness and pulse duration.
Lateral stress histories. Gauges were placed 2 mm from the impact face. (a) As-received and (b) 50% cold-rolled.
Elastic precursor decay for as-received and cold-rolled tantalum.
Shear strength in as-received and cold-rolled tantalum, as a function of impact stress.
Chemical analysis of tantalum bar stock (in ppm).
Elastic properties of pure tantalum.
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