冷轧成型Al/Ni多层复合材料力学行为与冲击释能特性研究 |
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引用本文: | 熊玮,张先锋,陈亚旭,丁力,包阔,陈海华.冷轧成型Al/Ni多层复合材料力学行为与冲击释能特性研究[J].爆炸与冲击,2019,39(5). |
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作者姓名: | 熊玮 张先锋 陈亚旭 丁力 包阔 陈海华 |
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作者单位: | 南京理工大学机械工程学院,江苏南京210094;陆军装备部,北京100072 |
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基金项目: | 中组部青年拔尖人才支持计划(2014);中央高校基本科研业务费专项(30916011305);江苏省研究生科研创新计划项目(KYCX18_0460,KYCX18_0476) |
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摘 要: | 基于冷轧成型工艺,采用不同的轧制道次制备Al/Ni多层复合材料。开展了Al/Ni多层复合材料准静态压缩和准密闭二次撞击反应实验,对它的力学性能和冲击释能特性进行测试。同时,通过扫描电镜得到了材料的细观结构特性,分析了Al/Ni多层复合材料细观特性对宏观力/化学行为的影响机制。结果表明,基于冷轧技术制备的Al/Ni多层复合材料比粉末压制而成的Al/Ni复合材料塑性更强,材料的抗压强度总体随冷轧次数的增加呈上升趋势。另外,冷轧3~5道次的Al/Ni多层复合材料的准密闭二次撞击反应实验表明,材料在相同的撞击速度(800~1 500 m/s)下释放的化学能随着轧制道次的增加而逐渐降低。
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关 键 词: | 多层复合材料 Al/Ni材料 冲击诱发化学反应 |
收稿时间: | 2017-12-25 |
Mechanical properties and shock-induced chemical reaction behaviors of cold-rolled Al/Ni multi-layered composites |
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Institution: | 1.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China2.Army Equipment Department, Beijing 100072, China |
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Abstract: | Al/Ni multi-layered composites were manufactured by cold rolling with different passes. The influence of cold rolling passes on the mechanical properties and shock-induced chemical reaction (SICR) behaviors of Al/Ni multi-layered composites was investigated by quasi-static compression tests and impact initiation experiments. A scanning electron microscopy (SEM) was used to obtain the microstructures of the Al/Ni multi-layered composites, and the microstructures from the scanning electron microscopy images were used to explain the experimental results. The results show that the cold-rolled Al/Ni multi-layered composites behave more plastically than the powder-compacted Al/Ni composites do. The compression strength of the Al/Ni multi-layered composites increases with the growth of rolling passes. On the other hand, more rolling passes result in decaying energy release capacity of the Al/Ni multi-layered composites under impact velocity from 800 m/s to 1 500 m/s. |
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