Influence of dynamic compression properties on ballistic performance of α+β two-phase titanium alloy

Yang Liu; Wang Ying; Wu Jingyi; Liu Xin

doi:10.7513/j.issn.1004-7638.2022.04.007

Volume 43 Issue 4

Sep. 2022

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Yang Liu, Wang Ying, Wu Jingyi, Liu Xin. Influence of dynamic compression properties on ballistic performance of α+β two-phase titanium alloy[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 42-47. doi: 10.7513/j.issn.1004-7638.2022.04.007

Citation:

Yang Liu, Wang Ying, Wu Jingyi, Liu Xin. Influence of dynamic compression properties on ballistic performance of α+β two-phase titanium alloy[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 42-47. doi: 10.7513/j.issn.1004-7638.2022.04.007

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Influence of dynamic compression properties on ballistic performance of α+β two-phase titanium alloy

doi: 10.7513/j.issn.1004-7638.2022.04.007

Chengdu Advanced Metal Materials Industrial Technology Research Institute Co., Ltd., Chengdu 610300, Sichuan, China

Received Date: 2022-03-21
Publish Date: 2022-09-14

Abstract

Abstract

In order to study the effect of dynamic compression properties on ballistic resistance of titanium alloy materials, three different strength grades of α+β two-phase titanium alloys, TC4, TC6 and TC11, are selected for the dynamic compression test, quasi-static tensile test and 5.8 mm caliber bullet target test to compare and analyze the microstructure, mechanical properties, dynamic compression properties and crater morphology. The results show that TC4, TC6 and TC11 strengthened by solution and aging heat treatment, the tensile strength and dynamic compressive strength of TC11 titanium alloy are the highest, reaching 1 258 MPa and 1 973 MPa, respectively. Three kinds of titanium alloy target plates with a thickness of 12 mm are used for target test, and the 5.8 mm caliber bullet with vertical incidence is effectively protected. The pit depth of TC11 titanium alloy is 2.4 mm and the pit size is 7.5 mm × 5.5 mm, which is smaller than the crater size of the other two titanium alloy, and shows a better protective effect. For the protection of 5.8 mm caliber bullet, there is a corresponding relationship between the dynamic compression performance and its elastic resistance. The higher of the dynamic compression strength and the critical fracture strain, the more energy absorbed by the impact process, and the better the ballistic performance.
- α+β two-phase titanium alloy,
- dynamic compression performance,
- ballistic performance,
- solution and aging strengthening

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References(7)

References

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