Penetration behaviors of Hf-based amorphous alloy jacketed rods

LIN Kunfu; ZHANG Xianfeng; CHEN Haihua; XIONG Wei; LIU Chuang; ZHANG Quanxiao

doi:10.11883/bzycj-2020-0181

Volume 41 Issue 2

Feb. 2021

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LIN Kunfu, ZHANG Xianfeng, CHEN Haihua, XIONG Wei, LIU Chuang, ZHANG Quanxiao. Penetration behaviors of Hf-based amorphous alloy jacketed rods[J]. Explosion And Shock Waves, 2021, 41(2): 023301. doi: 10.11883/bzycj-2020-0181

Citation:

LIN Kunfu, ZHANG Xianfeng, CHEN Haihua, XIONG Wei, LIU Chuang, ZHANG Quanxiao. Penetration behaviors of Hf-based amorphous alloy jacketed rods[J]. Explosion And Shock Waves, 2021, 41(2): 023301. doi: 10.11883/bzycj-2020-0181

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Penetration behaviors of Hf-based amorphous alloy jacketed rods

doi: 10.11883/bzycj-2020-0181

1.
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
2.
Ningbo Sub-academy of The National Weapons Science Research Academy, Ningbo 315103, Zhejiang, China

Received Date: 2020-06-03
Rev Recd Date: 2020-11-05

Available Online: 2021-02-02

Publish Date: 2021-02-05

Abstract

Abstract

Amorphous alloys have attracted wide interest from from domestic and foreign research scholars in recent years. In order to explore the deformation behavior and high-speed penetration performance of Hf-based bulk amorphous alloys, the static (10⁻³ s⁻¹) and dynamic (10²−10⁴ s⁻¹) mechanical properties tests of Hf-based bulk amorphous alloy materials were carried out. Based on the structure of the jacketed rod, penetration experiments were performed as well. Two kinds of jacketed rod projectiles, in Hf-based bulk amorphous alloy and 45 steel, penetrated into the semi-infinite 45 steel targets with velocities in the range of 1000−1500 m/s. The experimental results show that the Hf-based bulk amorphous alloy has a high fracture strength of 1.69 GPa under quasi-static compression (10⁻³ s⁻¹), and 1.15 GPa under dynamic compression (10²−10⁴ s⁻¹). The fracture of Hf-based bulk amorphous alloy is accompanied by a energy release phenomenon. The process of Hf-based bulk amorphous alloy jacketed rod projectiles penetrating the steel target can be divided into three stages: pit opening stage, penetration stage of the jacketed rod structure and remaining projectile penetration. The Hf amorphous alloy has an obvious energy-releasing reaction during the penetration process. The energy-releasing reaction of the Hf-based bulk amorphous alloy enhanced the damage effect of the projectile significantly by enlarging the diameter of the penetration bullet hole, and increasing the penetration depth and bullet hole volume. Compared with the 45 steel jacketed rod within the tested kinetic energy range, the range of increase in the diameter of the penetration single hole, the penetration depth and the volume of penetration bullet holes are 14.4%−23.8%, 5.2%−13.1%, and 12.9%−54.3%, respectively. In conclusion, the Hf-based bulk amorphous alloy jacketed rod projectile exhibits excellent penetration performance, which can provide new ideas for the application of amorphous alloy materials in the field of efficient damage.
- jacketed rod,
- long rod projectile,
- penetration behavior,
- amorphous alloy,
- energy-releasing reaction,
- Hf

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References(23)

References

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