钛合金装甲材料动态压缩力学性能及其抗弹能力关系

发布时间：2018-04-29 17:53

本文选题：钛合金 + 抗弹性能　；参考：《稀有金属材料与工程》2015年11期

【摘要】：采用分离式Hopkinson Bar技术针对不同热处理制度的TC6、ATI425以及TC3钛合金Φ5 mm×5 mm圆柱形标样进行了动态压缩实验,测定得到了试样在3000 s~(-1)高应变率条件下的动态强度、动态塑性及冲击吸收功;同时开展了以钛合金为面板、A3钢为背板的复合装甲抗弹性能试验,分析了钛合金动态力学性能与其抗弹性能之间的关系。结果表明:钛合金面板的抗弹性能与其动态强度和动态塑性均密切相关;钛合金的动态强度对材料抗弹性能的影响比动态塑性更加显著,其抗弹性能主要取决于动态强度;同时,表征钛合金动态力学性能优劣的冲击吸收功不能直接反映钛合金的抗弹能力;较大区域的正面开坑和较小的剪切充塞可以明显提高钛合金面板的抗弹性能。
[Abstract]:The dynamic compression experiments of TC6TI425 and TC3 titanium alloy 桅 5mm 脳 5mm cylindrical standard samples with different heat treatment systems were carried out by using separate Hopkinson Bar technique. The dynamic strength of the samples was measured under the condition of 3000 sm ~ (-1) high strain rate. The dynamic plasticity and impact absorption power of composite armor with titanium alloy as the panel and A _ 3 steel as the back plate were also tested, and the relationship between the dynamic mechanical properties and the elastic resistance of titanium alloy was analyzed. The results show that the elastic resistance of the titanium alloy panel is closely related to its dynamic strength and dynamic plasticity, and the dynamic strength of the titanium alloy has a more significant effect on the elastic resistance of the material than that of the dynamic plasticity, and the elastic resistance of the titanium alloy panel is mainly determined by the dynamic strength. At the same time, the impact absorption energy, which characterizes the dynamic mechanical properties of titanium alloy, can not directly reflect the resilience of titanium alloy, and the large area of the front pit and the smaller shear plug can obviously improve the elastic resistance of titanium alloy panel.
【作者单位】：北京理工大学;中航工业北京航空材料研究院;
【基金】：教育部“新世纪优秀人才支持计划”(NCET-12-0051)
【分类号】：TG146.23

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