| HR2钢及几种铁基材料的冲击相变行为 |
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| 引用本文： | 唐小军,胡海波,李庆忠,张兴华,唐志平,胡八一,汤铁钢.HR2钢及几种铁基材料的冲击相变行为[J].爆炸与冲击,2006,26(2):115-120. |
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| 作者姓名： | 唐小军 胡海波 李庆忠 张兴华 唐志平 胡八一 汤铁钢 |
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| 作者单位： | 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;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,230026 |
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| 基金项目： | 国家自然科学基金项目(10176029)，中国工程物理研究院面上基金项目(20030102) |
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| 摘 要： | 利用双灵敏度VISAR测量了抗氢钢HR2、工业纯铁DT2和铁锰镍合金FeMnNi在一维应变冲击载荷下的自由面速度历史，结合受载样品的回收分析对其动载行为和断裂表现进行了分析。研究表明，在实验加载压力范围内DT2和FeMnNi样品的自由面速度历史呈现包括相变波在内的典型三波结构，而对HR2钢，尽管金相分析显示其加载前后样品的相组织已发生变化，但速度剖面呈现的仅是典型的弹塑性双波结构。分析认为溶质材料成分和初始相组织是无相变波的主要原因。从冲击相变和卸载逆相变角度解释了在等厚靶碰撞时DT2和FeMnNi材料中出现的多重层裂、浅表层裂现象。
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| 关 键 词： | 固体力学 冲击相变 双灵敏度VISAR HR2抗氢钢 铁基材料 自由面速度 层裂 |
| 文章编号： | 1001-1455(2006)02-0115-06 |
| 收稿时间： | 01 12 2005 12:00AM |
| 修稿时间： | 01 20 2006 12:00AM |
Experimental studies on shock-induced phase transition in HR2 and other Fe-based materials |
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| TANG Xiao-jun,HU Hai-bo,LI Qing-zhong,ZHANG Xing-hua,TANG Zhi-ping,HU Ba-yi,TANG Tie-gang.Experimental studies on shock-induced phase transition in HR2 and other Fe-based materials[J].Explosion and Shock Waves,2006,26(2):115-120. |
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| Authors: | TANG Xiao-jun HU Hai-bo LI Qing-zhong ZHANG Xing-hua TANG Zhi-ping HU Ba-yi TANG Tie-gang |
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| Institution: | 1.Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, China Academy of engineering Physics, Mianyang 621900, Sichuan, China;2.Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230026, Anhui, China |
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| Abstract: | The free-surface velocity profiles of HR2,DT2 and FeMnNi under one-dimensional shock loading were measured by using double-sensitivity VISAR.Combined with the analysis of recovered fragments,dynamic behaviors and spallation phenomena of these materials were studied.Typical triple-wave configurations with phase transition were recorded in DT2 and FeMnNi,but only elastic-plastic double waves were observed in HR2,although the metallographic characters were changed after impact.Multi-spallation and shallow spallation phenomena of DT2 and FeMnNi under homo-thickness target impact were discussed. |
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| Keywords: | solid mechanics shock-induced phase transition double-sensitivity VISAR HR2 steel Fe-based material free surface velocity spallation |
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