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给定压力下纯铁材料的冲击相变与层裂特性研究

DOI: 10.11858/gywlxb.2010.03.009, PP. 213-218

Keywords: 纯铁,冲击相变,逆相变,层裂

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Abstract:

采用VISAR测量样品自由面速度剖面和回收样品观测分析联合技术,开展等厚对称碰撞实验,结合文献中的实验结果,研究了冲击加载压力大于纯铁材料冲击相变阈值约2~5GPa和大于冲击相变阈值约10GPa两种压力状态下纯铁材料的加卸载历程及各相区的变化,并从应力波相互作用的角度,指出了冲击加载压力略大于纯铁材料相变阈值约2GPa时,等厚对称碰撞样品“反常”二次层裂与冲击相变及逆相变的关联机制。

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