| FeMnNi合金的冲击相变和层裂特性的实验研究 |
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| 引用本文： | 张兴华,唐志平,徐薇薇,唐小军,郑航.FeMnNi合金的冲击相变和层裂特性的实验研究[J].爆炸与冲击,2007,27(2):103-108. |
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| 作者姓名： | 张兴华 唐志平 徐薇薇 唐小军 郑航 |
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| 作者单位： | 中国科学技术大学中科院材料力学行为和设计重点实验室,安徽,合肥,230027;中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室,四川,绵阳,621900 |
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| 摘 要： | 对FeMnNi合金进行了轻气炮平板撞击实验研究，实验中材料发生了相变和层裂。得到的FeMnNi合金的相变阈值压力为6.3~6.9 GPa，远低于纯铁的相变阈值压力13 GPa，说明Mn、Ni合金元素的加入会极大的降低相变阈值。回收试样观测表明，当应力高于FeMnNi合金的相变阈值时，样品中可能产生二次层裂现象和浅表层裂新现象。实验结果还表明该合金相变后层裂强度没有明显的提高。
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| 关 键 词： | 固体力学 相变 锰铜计 FeMnNi合金 层裂 VISAR Hugoniot线 |
| 文章编号： | 1001-1455(2007)02-0103-06 |
| 修稿时间： | 11 2 2005 12:00AM |
Experimental study on characteristics of shock-induced phase transition and spallation in FeMnNi alloy |
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| ZHANG Xin-hua,TANG Zhi-ping,XU Wei-wei,TANG Xiao-jun,ZHENG Hang.Experimental study on characteristics of shock-induced phase transition and spallation in FeMnNi alloy[J].Explosion and Shock Waves,2007,27(2):103-108. |
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| Authors: | ZHANG Xin-hua TANG Zhi-ping XU Wei-wei TANG Xiao-jun ZHENG Hang |
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| Institution: | 1.The Key Laboratory for Mechanical Behavior and Design of Materials of CAS, University of Science and Technology of China, Hefei 230027, Anhui, China;2.Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China |
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| Abstract: | Light gas gun plate impact experiments were conducted on a FeMnNi alloy and phase transition and spallation occurred.Transition pressure of this alloy obtained in the experiments(6.3~6.9 GPa) is much lower than that of pure iron(13 GPa),which demonstrats that the addition of Mn and Ni may lower the transition pressure strongly.Observation of the recovered samples shows that multiple spallations and shallow spallation may occur in the sample when the pressure is higher than the transition pressure of this alloy.Experimental results indicate that the spallation strength of this alloy doesn't increase distintly after phase transition. |
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| Keywords: | solid mechanics phase transition manganin gauge FeMnNi alloy spallation VISAR Hugoniot curve |
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