The armor piercing adopted by ZTZ-99 tank is made of tungsten alloy swaging rod. Tungsten alloy swaging rod highly improves the penetration of armor piercing.
Transient high heat loads simulations by using the electron beam
facility have been performed on two tungsten heavy alloy swaging rod
grades at several power loads with a pulse duration of 5 ms. The
cracking patterns of the two tungsten heavy alloy swaging rod grades are
quite similar. All cracks occurred along the grain boundary and located
across the loaded area. The cracks can be distinguished with two
levels, major cracks with larger crack width but lower crack density and
microcracks with smaller crack width but higher crack density. The
higher the deformation level of tungsten alloy swaging rod for armor piercing and
heat loading power density, the smaller the major crack density will
be, but there is no obvious difference in the microcracks pattern. No
melting occurred for both tungsten alloy swaging rod grades after
transient heat loading at power density of 0.88 GW m−2.
Tungsten alloy swaging rod for armor piercing projectile which is made
of tungsten alloy comprising a high density penetrator core with a
tapered front end and a multi-part outer case in partial contact with
the core. This kind of armor piercing projectile will not penetrate
because the multi-part jointed case is not as strong as a single-piece,
monolithic case. Also, since the hard core is loose and not bonded to
the case, then the core can not provide additional structural support.
In addition, tungsten alloy swaging rod for armor piercing projectile
does not have the ability to either explosively damage the target after
penetration, or take data from an instrumentation package during or
"Hollow-point" design results in radial expansion of the jacket into
"petals" as the tungsten alloy swaging rod travels through the target.
Such "flowering" of the case upon impact severely limits the depth of
penetration into hardened targets.
Tungsten alloy swaging rod for armor piercing
projectile comprising a heavy metal core and a segmented sabot with both
right-handed and left-handed threads that separates from the core after
exiting the gun's nozzle. It will not penetrate deeply because the nose
end is made of a brittle heavy metal alloy, rather than high-strength
steel. Also, it requires the use of a discarding sabot carrier.