高速冲击下Ti-Al3Ti金属间层合复合材料的失效机理

IF 0.6 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

稀有金属材料与工程 Pub Date : 2018-09-01 DOI:10.1016/S1875-5372(18)30197-8

Fan Xueling , Yuan Meini , Qin Qiang

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引用次数: 10

摘要

对Ti-Al3Ti金属间层合复合材料在弹丸冲击下的侵深过程进行了数值研究。详细研究了高速冲击下Ti-Al3Ti金属间层合复合材料的弹道性能、应力分布、破坏及吸能机理。结果表明:高速冲击下的Ti-Al3Ti金属间层合复合材料主要处于拉应力作用下，压缩波被反射回拉伸波;在弹丸侵彻过程中，在Al3Ti相中形成横向、倾斜和垂直的裂纹，这些裂纹能极大地吸收弹丸的动能。

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Failure Mechanisms of Ti-Al3Ti metal-Intermetallic Laminate Composites Under High-Speed Impact

The penetration process of Ti-Al₃Ti metal-intermetallic laminate composites impacted by a projectile was numerically investigated. The ballistic performance, stress distribution, failure and energy absorbing mechanisms of Ti-Al₃Ti metal-intermetallic laminate composites under high-speed impact were examined in detail. The results show that Ti-Al₃Ti metal-intermetallic laminate composites under high-speed impact is mostly under tensile stress, since the compressive wave is reflected back as a tensile wave. During projectile penetration, transverse, inclined, and vertical cracks are formed in the Al₃Ti phase, which can dramatically absorb the kinetic energy of projectile.

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来源期刊

稀有金属材料与工程工程技术-材料科学：综合

CiteScore

1.30

自引率

57.10%

发文量

17973

审稿时长

4.2 months

期刊介绍：