中文摘要：

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MnFeNi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。

英文摘要：

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 elasticplastic 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.