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无钴合金钢的冲击响应实验研究

DOI: 10.11858/gywlxb.2005.02.005, PP. 127-131

Keywords: 冲击动力学,无钴合金钢,Hugoniot,层裂

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Abstract:

利用一级轻气炮作为加载手段,研究了无钴合金钢在3~20GPa压力区间的冲击响应特性。用激光干涉测速——VISAR记录了双波结构的自由面速度剖面,并利用常压下的弹性纵波速度近似替代低压冲击下的弹性先驱波速度,确定了无钴合金钢的Hugoniot关系。根据自由面速度反映的层裂信息,给出了无钴合金钢的Hugoniot弹性极限、层裂强度以及层裂片厚度等动态力学参数。

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