HR2钢及几种铁基材料的冲击相变行为

唐小军; 胡海波; 李庆忠; 张兴华; 唐志平; 胡八一; 汤铁钢

doi:10.11883/1001-1455(2006)02-0115-06

HR2钢及几种铁基材料的冲击相变行为

doi: 10.11883/1001-1455(2006)02-0115-06

1.
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；
2.
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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出版历程
- 刊出日期: 2006-03-25

Experimental studies on shock-induced phase transition in HR2 and other Fe-based materials

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

摘要

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。
- 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
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.
- solid mechanics /
- shock-induced phase transition /
- double-sensitivity VISAR /
- HR2 steel /
- Fe-based material /
- free surface velocity /
- spallation

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