Le. Murr et al., DYNAMIC RECRYSTALLIZATION IN DETONATING TANTALUM SHAPED CHARGES - A MECHANISM FOR EXTREME PLASTIC-DEFORMATION, Materials characterization, 33(1), 1994, pp. 65-74
In a systematic examination and comparison of two different tantalum s
tarting liner cones and corresponding recovered slugs and jet fragment
s for detonated shaped charges, using light and transmission electron
microscopy observations, the slug and jet grain sizes were reduced fro
m the liners by nearly a factor of 100. The slug and jet cross section
s exhibited different concentric zones of varying grain and substructu
res, and these also varied with a difference in the starting liner con
e grain structure. These observations provide unambiguous evidence for
dynamic recrystallization as a prominent mechanism for deformation in
the detonating shaped charge.