Abstract
Sinter alloys containing a high percentage of tungsten (80 – 97.6%) are used because of their high density and great ductility. The deformation behavior of such materials has been investigated under hypervelocity impact conditions. Several types of projectiles have been fired into semi-infinite steel targets at impact velocities between 1000 m/s and 2100 m/s. A special shape factor has been defined in order to characterize the amount of deformation of individual tungsten grains within respective nickel-iron matrices. Within residual projectiles, the shape factors have been measured as a function of the distance from the stagnation point and impact velocity.
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