Two commercially available tungsten heavy alloys, one alloy containing cobalt, one cobaltfree, as well as a third material as reference were tested and compared regarding their terminal ballistic behavior. Experimental data were gathered in eleven tests against three different generic target set-ups (oblique finite and semi-infinite targets). The main aspects of the terminal ballistic behavior were the residual velocity after target perforation, size and number of major primary fragments, the number and penetrating capability of primary and secondary fragments as well as depths of penetration with the projectiles accelerated to a representative medium caliber impact velocity of 1200 m/s. The observed ballistic behaviors of the material containing cobalt and the cobalt-free tungsten heavy alloy were similar. The third material showed a different behavior in some aspects.
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