Effect of heat treatment on microstructure and mechanical properties of hot-hydrostatically extruded 93W–4.9Ni–2.1Fe alloy

Yang, Yu; Zhang, Wencong; Wang, Erde

doi:10.1016/j.jallcom.2014.11.009

Cited by 26 publications

(1 citation statement)

References 31 publications

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“…Eva Liden [45] conducted a study on the fragmentation propensity of long rod ammunition It has been claimed that tungsten heavy alloy (WHA) rods exhibit "self-sharpening" behavior when shaped using severe plastic deformation methods. [18][19][20][21] Recently, 80W-14Cu-6Zn rods produced by the pressureless infiltration method exhibited "selfsharpening" behavior in ballistic impact tests, and their depth of intrusion was 30% deeper than that of 90W-7Ni-3Fe rods. [22][23] Although increasing the core density improves the penetration capability of armor-piercing ammunition, increasing the self-sharpening of the core during penetration currently improves the penetration capability even more, and can even reduce the material density to a certain extent.…”

Section: Introductionmentioning

confidence: 99%

Study of armor-piercing self-sharpening properties of 88WC-12Co material

Yin

Zhang

Chen

et al. 2023

J. Phys.: Conf. Ser.

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In this paper, the armor piercing power of 93W-4Ni-3Fe and 88WC-12Co with the same target velocity and core size is compared through experiments. The craters formed by the penetration of the same size projectile core made of 88WC-12Co and 93W-4Ni-3Fe into the semi-infinite Q235 steel target at the velocity of 1300 m/s–1500 m/s were compared. The penetration depth of 88WC-12Co is 12.5% –35% lower than that of 93W-4Ni-3Fe ( including residual projectile core ), and the pore size is about 12%–26% smaller. At the velocity of 1300 m/s-1480 m/s, there are more residual projectiles at the bottom of 93 W projectile pit. When the velocity is higher than 1510 m/s, the residue is less and the utilization rate of core material is higher. The aperture caused by the penetration of 88WC-12Co projectile core is slender and smooth, and the residual at the bottom of the crater is less than 93W. This proves that 88WC-12Co material has certain armor piercing self-sharpness. It is speculated that 88WC has a similar or even higher penetration ability to 93W when the initial kinetic energy of the two cores is the same.

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