Zr基非晶合金材料的冲击释能特性  

Impact energy releasing characteristics of Zr-based amorphous alloy

作　　者：陈曦[1] 杜成鑫[1] 程春[1] 潘念侨 CHEN Xi;DU Chengxin;CHENG Chun;PAN Nianqiao(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《兵器材料科学与工程》2018年第6期44-49,共6页Ordnance Material Science and Engineering

基　　金：国家自然科学基金(11802141;11772160)

摘　　要：为研究Zr基非晶合金材料在高速冲击载荷作用下的能量释放特性,采用准密闭反应容器试验方法,观察不同冲击速度下Zr基非晶合金破片的冲击反应过程及现象,测量冲击反应的压力时程曲线。结果表明:Zr基非晶合金破片发生爆燃性化学反应,产生的明亮火光和喷射现象持续一定时间;冲击速度对Zr基非晶合金破片的冲击释能特性有显著影响,当冲击速度为1 350 m/s时,冲击波超压和准静态压力达到最大,Zr基非晶合金破片冲击反应较完全。在此基础上,推导准静态压力与能量的函数关系,以及冲击温度表达式,表征Zr基非晶合金材料动态能量释放特性。To investigate the energy release characteristics of Zr-based amorphous alloy materials under high-speed impact loading, a quasi-sealed reaction vessel test method was used to observe the impact reaction process and phenomena of Zr- based amorphous alloy fragments under different impact velocities, and the history curve of the impact reaction pressure was measured. The results show that the impact-induced deflagration and chemical reaction occur in ZrJbased amorphous alloy fragments, there is a brightness flame and the jet phenomenon in a certain duration. The impact velocity has a significant influence on the energy release characteristics of the Zr-based amorphous alloy fragments. When the impact velocity is 1 350 m/s, the shock wave overpressure and the quasi-static pressure can reach the maximum, and the impact reaction of Zr-based amorphous alloy fragment is complete. On this basis, the relationship between the quasi-static pressure and the released energy, and the expression of impact temperature are derived to characterize the dynamic energy release characteristics of Zr- based amorphous alloy materials.

关 键 词：ZR基非晶合金 准密闭反应容器 能量释放特性 准静态压力 冲击温度 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]