Study on High-Strain-Rate Deformation of Magnesium Alloy Using Underwater Shock Waves Generated by High-Voltage Electric Discharge of Thin Wire
Study on High-Strain-Rate Deformation of Magnesium Alloy Using Underwater Shock Waves Generated by High-Voltage Electric Discharge of Thin Wire
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DOI：
10.3390/met12111939
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发表时间：
2022-11
期刊：
影响因子：
2.9
通讯作者：
H. Iyama;Hayato Yamaguchi;M. Nishi;Y. Higa
中科院分区：
文献类型：
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作者：
H. Iyama;Hayato Yamaguchi;M. Nishi;Y. Higa
镁是一种丰富的高比强度材料，其作为结构金属的用途越来越多。然而，其性质导致其在室温下形成困难。因此，本研究的目的是在室温下形成镁合金，使用由铝丝放电产生的水下冲击波。使用由铝构成的辅助板代替单独的镁合金进行成形。此外，还采用了双曲线和抛物线压力容器。数值模拟进行测量的压力值，水下冲击波的传播，和变形的镁合金。当在双曲压力容器内的AZ31镁合金板的上表面上放置辅助铝板时，观察到大的变形。
Magnesium is an abundant material with high specific strength, and its use as a structural metal is increasing. However, its properties cause difficulty in its formation at room temperature. Therefore, the objective of this study was to form a magnesium alloy at room temperature using an underwater shock wave generated by the discharge of an aluminum wire. Forming was conducted using an auxiliary plate composed of aluminum instead of magnesium alloy alone. In addition, hyperbolic and parabolic pressure vessels were employed. Numerical simulations were performed to measure the pressure values, propagation of underwater shock waves, and deformation of the magnesium alloy. Large deformation was observed when an auxiliary aluminum plate was placed on the upper surface of an AZ31 magnesium alloy plate inside the hyperbolic pressure vessel.