Page 102 - 《爆炸与冲击》2026年第3期

第 46 卷 郑贺龄，等： (Ti 2 Zr) 1.5 NbVAl 0.5 高熵合金的动态响应与冲击释能机理 第 7 期

(2) 冲击速度由 734 m/s 升至 1 375 m/s 时，弹丸残渣的回收率由 80.07% 降至零，容器内峰值温度最
高达 2 124.15 K，较同条件钢弹提高 102%，释能持续时间从 5 ms 延长至 12 ms。完全破碎的弹丸通过氧
化还原反应释放能量，破碎粒径集中于 1～2 mm 区间，表明破碎程度是释能烈度的决定性因素。
(3)FEM-SPH 算法精准复现侵彻温升与破碎行为，模拟误差低于 5%，验证了 Johnson-Cook 本构模型
及 Grüneisen 状态方程的可靠性。合金在侵彻后期展现的持续释能特性及极端的温升，凸显高熵合金作
为新型冲击含能材料的优势。
(4) 绝热剪切带内，位错发生剧烈重组并触发动态再结晶过程，微裂纹沿再结晶区域优先扩展，建立
从微观变形到宏观破碎的能量释放机制。在 1 375 m/s 高速撞击条件下，交滑移机制受抑制导致位错密
度达到饱和状态，引发局部晶格失稳并延伸至整体结构失效，而在 734 m/s 低速下，动态再结晶有效减轻
加工硬化效应，延缓合金的失效进程。

参考文献：
[1] WANG Z X, ZHOU Y K, ZHENG H L, et al. Mechanical response and deformation mechanism of Zr-Ti-Nb-Ta-Al refractory
high-entropy alloy under the synergistic effects of temperature and strain rate [J]. Journal of Materials Science and
Technology, 2026, 240: 65–79. DOI: 10.1016/j.jmst.2025.02.065.
[2] ZHENG H L, WANG Z X, LI Z K, et al. Study on deformation mechanism and energy release characteristics of refractory
high-entropy alloy (Ti 2 Zr) 1.5 NbVAl 0.5 under different loading conditions [J]. Journal of Alloys and Compounds, 2025, 1018:
179031. DOI: 10.1016/j.jallcom.2025.179031.
[3] 乔珺威, 张勇, 王志华. 高熵合金及其性能 [M]. 北京: 科学出版社, 2025: 2–3.
[4] SENKOV O N, WILKS G B, SCOTT J M, et al. Mechanical properties of Nb 25 Mo 25 Ta 25 W 25 and V 20 Nb 20 Mo 20 Ta 20 W 20
refractory high entropy alloys [J]. Intermetallics, 2011, 19(5): 698–706. DOI: 10.1016/j.intermet.2011.01.004.
[5] ZHANG Y, ZUO T T, TANG Z, et al. Microstructures and properties of high-entropy alloys [J]. Progress in Materials Science,
2014, 61: 1–93. DOI: 10.1016/j.pmatsci.2013.10.001.
[6] HAN Y, LI H B, FENG H, et al. Mechanism of dislocation evolution during plastic deformation of nitrogen-doped
CoCrFeMnNi high-entropy alloy [J]. Materials Science and Engineering: A, 2021, 814: 141235. DOI: 10.1016/j.msea.2021.
141235.
[7] WU J M, LIN S J, YEH J W, et al. Adhesive wear behavior of Al x CoCrCuFeNi high-entropy alloys as a function of aluminum
content [J]. Wear, 2006, 261(5/6): 513–519. DOI: 10.1016/j.wear.2005.12.008.
[8] XU J C, ZHANG F, ZHANG Z G, et al. Effect of precipitation on the kink deformation and damage in a (WTaNb) 50 Hf 50 body-
centered-cubic high-entropy alloy at high strain rate [J]. Materials Science and Engineering: A, 2025, 942: 148641. DOI:
10.1016/j.msea.2025.148641.
[9] HUANG S R, WU H, ZHU H G, et al. Effect of niobium addition upon microstructure and tensile properties of CrMnFeCoNix
high entropy alloys [J]. Materials Science and Engineering: A, 2021, 809: 140959. DOI: 10.1016/j.msea.2021.140959.
[10] JIANG L H, LIU X G, GUO Z H, et al. Effect of high strain rate on adiabatic shear susceptibility and microstructures in
Al 0.4 CoCrFeNi high-entropy alloy [J]. Journal of Materials Research and Technology, 2024, 31: 2003–2013. DOI: 10.1016/
j.jmrt.2024.06.177.
[11] JI W S, YIN X Y, ZOU Q, et al. Research on penetration characteristics of Nb 1 Zr 2 Ti 1 W 2 high entropy alloy [J]. Journal of
Alloys and Compounds, 2024, 1005: 176088. DOI: 10.1016/j.jallcom.2024.176088.
[12] CHEN H H, ZHANG X F, DAI L H, et al. Experimental study on WFeNiMo high-entropy alloy projectile penetrating semi-
infinite steel target [J]. Defence Technology, 2022, 18(8): 1470–1482. DOI: 10.1016/j.dt.2021.06.001.
[13] 张先锋, 赵晓宁. 多功能含能结构材料研究进展 [J]. 含能材料, 2009, 17(6): 731–739. DOI: 10.3969/j.issn.1006-9941.
2009.06.021.
ZHANG X F, ZHAO X N. Review on multifunctional energetic structural materials [J]. Chinese Journal of Energetic
Materials, 2009, 17(6): 731–739. DOI: 10.3969/j.issn.1006-9941.2009.06.021.
[14] REN K R, CHEN J, QING H, et al. Study on shock-induced chemical energy release behavior of Al/W/PTFE reactive material
with mechanical-thermal-chemical coupling SPH approach [J]. Propellants, Explosives, Pyrotechnics, 2020, 45(12): 1937–

073101-20